Helminthic therapy and allergy
Allergies, also known as allergic diseases, are various conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment.
All forms of allergy can respond well to helminthic therapy.
There is a page dedicated to asthma, which is a form of allergy, and whose articles should also be consulted for a complete overview.
The scientific evidence[edit | edit source]
- 2025 Aug 12 Anisakis simplex excretion/secretion antigens abolish the anaphylactic response in allergic mice -- Full text
- 2025 May 26 Therapeutic potentials of Trichinella spiralis in immune disorders: From allergy to autoimmunity -- Full text | PDF
- 2024 Oct 30 Protective effect of Schistosoma mansoni infection and/or soluble egg antigen on allergic reaction in male mice
- 2024 Aug 26 S. mansoni -derived omega-1 prevents OVA-specific allergic airway inflammation via hampering of cDC2 migration -- Full text | PDF
- 2024 Mar 22 Association between helminth infection and allergic disorders among children in Batu, Ethiopia -- Full text | PDF
- 2024 Immunomodulatory effect of hemozoin from Opisthorchis felineus and its participation in reducing allergic inflammation through activation of the inflammasome
- 2023 Nov 28 Immunosuppressive ability of Trichinella spiralis adults can ameliorate type 2 inflammation in a murine allergy model
- 2022 Jun 27 Suppression of airway allergic eosinophilia by Hp-TGM, a helminth mimic of TGF-β
- 2022 Apr 5 Ascarosides from helminths pack a punch against allergy -- Full text | PDF
- 2022 Feb 25 Effect of Echinococcus granulosus hydatid cyst fluid protein on allergic rhinitis induced by ovalbumin in mice (chinese)
- 2021 Sep 22 Infection-exposure in infancy is associated with reduced allergy-related disease in later childhood in a Ugandan cohort -- Full text | PDF
- 2021 Aug 3 Mycobacterium-Induced Th1, Helminths-Induced Th2 Cells and the Potential Vaccine Candidates for Allergic Asthma: Imitation of Natural Infection -- Full text | PDF
- 2021 Jun 10 Hookworm treatment induces a decrease of suppressive regulatory T cell associated with a Th2 inflammatory response -- Full text Allergic sensitisation increased following treatment with albendazole
- 2021 Apr 22 Immunoprotective inference of experimental chronic Trichinella spiralis infection on house dust mites induced allergic airway remodeling
- 2021 Mar 1 Understanding Asthma and Allergies by the Lens of Biodiversity and Epigenetic Changes -- Full text | PDF
- 2020 Oct 7 Helminth Induced Immunoregulation and Novel Therapeutic Avenue of Allergy -- Full text | PDF
- 2020 Sept 11 What Can Parasites Tell Us About the Pathogenesis and Treatment of Asthma and Allergic Diseases -- Full text | PDF
- 2020 Sep Preconception helminth infection alters offspring microbiota and immune subsets in a mouse model -- Full text | PDF
- 2020 May 19 The Gastrointestinal Helminth Heligmosomoides bakeri Suppresses Inflammation in a Model of Contact Hypersensitivity -- Full text | PDF
- 2020 Helminth Therapy: A New Tool for Treatment of Allergic Diseases book chapter
- 2019 Sept 27 Ascaris lumbricoides Cystatin Prevents Development of Allergic Airway Inflammation in a Mouse Model -- Full text | PDF (But also see the details here regarding the potentially adverse effects of infection with ascaris lumbricoides.)
- 2019 Sept 9 Schistosoma japonicum peptide SJMHE1 suppresses airway inflammation of allergic asthma in mice -- Full text | PDF
- 2019 Aug 9 Critical roles of regulatory B and T cells in helminth parasite-induced protection against allergic airway inflammation
- 2019 Jun 28 Preventive and therapeutic effects of Trichinella spiralis adult extracts on allergic inflammation in an experimental asthma mouse model -- Full text
- 2019 Apr 17 Cytokine production in allergic and Trichuris trichiura-infected children from an urban region of the Brazilian northeast (TTO
- 2018 Sep 19 Soil-transmitted helminth parasites and allergy: observations from Ecuador
- 2018 Sep 14 Parasites and allergy: observations from Africa
- 2018 Aug 14 Isolated Schistosoma mansoni eggs prevent allergic airway inflammation (Allergic asthma)
- 2018 Jul 25 Worms: Pernicious Parasites or Allies Against Allergies? (review)
- 2018 May 28 Helminth-induced regulatory T cells and suppression of allergic responses
- 2017 Nov 24 Schistosoma mansoni-specific immune responses and allergy in Uganda
- 2017 Nov 7 Parasite-Derived Proteins for the Treatment of Allergies and Autoimmune Diseases -- Full text | PDF
- 2017 Nov Global issues in allergy and immunology: Parasitic infections and allergy
- 2017 Aug 16 Secreted products of Fasciola hepatica inhibit the induction of T cell responses that mediate allergy
- 2017 Jul Opisthorchis felineus negatively associates with skin test reactivity in Russia-EuroPrevall-International Cooperation study -- Full text
- 2017 Jun 14 Schistosoma japonicum infection downregulates house dust mite-induced allergic airway inflammation in mice -- Full text | PDF (Asthma)
- 2017 Apr 27 Immune responses to fungal aeroallergen in Heligmosomoides polygyrus infected-mice vary by age
- 2017 Apr 3 Schistosome-induced pulmonary B cells inhibit allergic airway inflammation and display a reduced Th2-driving function
- 2017 Mar 8 Chronic schistosomiasis during pregnancy epigenetically reprograms T cell differentiation in offspring of infected mothers (Allergy)
- 2017 Feb 21 Microbiome, autoimmunity, allergy, and helminth infection: The importance of the pregnancy period
- 2016 Oct-Dec Anti-inflammatory Potentials of Excretory/Secretory (ES) and Somatic Products of Marshallagia marshalli on Allergic Airway Inflammation in BALB/c Mice -- Full text | PDF
- 2016 Role in Allergic Diseases of Immunological Cross-Reactivity between Allergens and Homologues of Parasite Proteins
- 2016 May 9 Parasitic helminth infections and the control of human allergic and autoimmune disorders
- 2016 Apr 7 Cellular gene expression induced by parasite antigens and allergens in neonates from parasite-infected mothers
- 2016 Jan 11 The Role of Helminth Infection and Environment in the Development of Allergy: A Prospective Study of Newly-Arrived Ethiopian Immigrants in Israel -- Full text
- 2015 Dec 7 Low-Dose Intestinal Trichuris muris Infection Alters the Lung Immune Microenvironment and Can Suppress Allergic Airway Inflammation -- Full text | PDF
- 2015 Oct 27 The Intestinal Microbiota Contributes to the Ability of Helminths to Modulate Allergic Inflammation -- Full text | PDF
- 2015 Oct 1 Ten Weeks of Infection with a Tissue-Invasive Helminth Protects against Local Immune Complex-Mediated Inflammation, but Not Cutaneous Type I Hypersensitivity, in Previously Sensitized Mice -- Full text | PDF
- 2015 Sept 23 Helminth infections, socio-economic status and allergies in Indonesia (Thesis)
- 2015 Aug The Role of Adoptive Transfer of Immune Cells in Helminth- induced Regulation of Allergy and Autoimmune Diseases
- 2015 Jul The allergy epidemics: 1870-2010 -- Full text | PDF This historical analysis of the allergy epidemic highlights the role of helminth control as one of the explanations for the trends from 1870 to 2010.
- 2015 May 31 Secretory Products of Trichinella spiralis Muscle Larvae and Immunomodulation: Implication for Autoimmune Diseases, Allergies, and Malignancies -- Full text | PDF
- 2015 May 20 Immune responses in children infected with the pinworm Enterobius vermicularis in central Greece
- 2015 Apr Exosome-transported microRNAs of helminth origin: new tools for allergic and autoimmune diseases therapy?
- 2015 Feb 15 A novel regulatory macrophage induced by a helminth molecule protects against mucosal inflammation and mitigates allergic airway inflammation and colitis in mice
- 2015 Feb Worms as therapeutic agents for allergy and asthma: understanding why benefits in animal studies have not translated into clinical success -- Full text | PDF
- 2015 Feb Potential Treatments for Food Allergy
- 2014 Dec In utero priming by worms protects against respiratory allergies
- 2014 Dec Maternal immune response to helminth infection during pregnancy determines offspring susceptibility to allergic airway inflammation
- 2014 Nov 19 Effects of helminth co-infections on atopy, asthma and cytokine production in children living in a poor urban area in Latin America -- Full text | PDF
- 2014 Nov Therapeutic potential of larval excretory/secretory proteins of the pig whipworm Trichuris suis in allergic disease (TSO)
- 2014 Oct Allergy and worms: let's bring back old friends
- 2014 Sept Blockade of IL-33 release and suppression of type 2 innate lymphoid cell responses by helminth secreted products in airway allergy -- Full text | PDF
- 2014 Aug 28 Parasitic infection and immunomodulation: A possible explanation for the hygiene hypothesis in autoimmune and allergic disease -- Full text
- 2014 Aug 26 The "hygiene hypothesis" for allergic disease is a misnomer (No abstract)
- 2014 May 1 Chronic helminth infection protects mice from type III hypersensitivity (HYP6P.277)
- 2014 May Parasitic worms and allergies in childhood: insights from population studies 2008-2013
- 2014 Feb 14 Helminth Allergens, Parasite-Specific IgE, and Its Protective Role in Human Immunity -- Full text | PDF
- 2013 Aug 15 Schistosoma mansoni-mediated suppression of allergic airway inflammation requires patency and Foxp3+ Treg cells -- Full text | PDF
- 2013 Mar A nematode immunomodulator suppresses grass pollen-specific allergic responses by controlling excessive Th2 inflammation
- 2013 Jan Evolutionary biology and anthropology suggest biome reconstitution as a necessary approach toward dealing with immune disorders -- Full text | PDF This paper explains how the modern pandemics of autoimmune, inflammatory and allergic disease are due to the loss of species, especially helminths, from the human ecosystem.
- 2013 Jan Protection against allergic airway inflammation during the chronic and acute phases of Trichinella spiralis infection
- 2012 Sept 21 Advances in immunotherapy for food allergy -- Full text Yamini Virkud and Brian Vickery, Discovery Magazine
- 2012 Jul Trichuris suis ova: testing a helminth-based therapy as an extension of the hygiene hypothesis -- PDF (TSO)
- 2012 Apr 18 Helminth therapy (worms) for allergic rhinitis -- PDF
- 2012 Apr Parasitic worm therapy for allergy: is this incongruous or avant-garde medicine?
- 2012 Mar Schistosoma mansoni antigens as modulators of the allergic inflammatory response in asthma
- 2012 Asthma and allergic disease: their relation with Necator americanus and other helminth infections Johanna Feary, PhD Thesis -- PDF (NA)
- 2011 Oct Regulatory B-cell induction by helminths: implications for allergic disease
- 2011 Oct Reconstitution of the human biome as the most reasonable solution for epidemics of allergic and autoimmune diseases | PDF
- 2011 Feb Trichinella spiralis: infection reduces airway allergic inflammation in mice
- 2010 Nov Long-term periodic anthelmintic treatments are associated with increased allergen skin reactivity -- Full text | PDF
- ⚡ 2010 Oct 13 Reconstituting the depleted biome to prevent immune disorders William Parker, Duke University. Explains why replacing absent "old friends" may be the only reasonable therapy for a wide range of immune-associated disorders, including allergy, autoimmunity and autism.
- 2010 Jun Helminth-induced CD19+CD23hi B cells modulate experimental allergic and autoimmune inflammation -- Full text | PDF
- 2010 May Schistosoma mansoni antigens modulate the allergic response in a murine model of ovalbumininduced airway inflammation -- Full text | PDF
- 2010 May Regulatory B cells prevent and reverse allergic airway inflammation via FoxP3-positive T regulatory cells in a murine model -- Full text
- 2010 Apr Immunomodulators of helminthes: Promising therapeutics for autoimmune disorders and allergic diseases -- Full text | PDF
- 2010 Mar Looking into the future of Trichuris suis therapy. Comment on a defective clinical trial Trichuris suis ova therapy for allergic rhinitis: a randomized, double-blind, placebo-controlled clinical trial which use a bad pH 5.0 for TSO
- 2010 Jan Trichuris suis ova therapy for allergic rhinitis: a randomized, double-blind, placebo-controlled clinical trial -- PDF (TSO). This trial employed a novel TSO formulation with a pH of 5, when it is known that storage of TSO at a pH above 4 may impede its therapeutic effect in humans. [1] The conclusions drawn by the authors of this study about the efficacy of TSO are therefore not reliable.
- 2010 Jan Reduced helminth burden increases allergen skin sensitization but not clinical allergy: a randomized, double-blind, placebo-controlled trial in Vietnam -- Full text
- 2010 Jan Regulation of type 1 diabetes, tuberculosis, and asthma by parasites -- Full text | PDF
- 2010 Jan Helminth infection inhibits airway allergic reaction and dendritic cells are involved in the modulation process -- Full text | PDF
- 2010 Jan Chronic helminth infections protect against allergic diseases by active regulatory processes -- Full text | PDF
- 2010 Food allergy prevalence in children of opisthorchiasis world region -- PDF (russian)
- 2009 Oct Survival of the fittest: allergology or parasitology?
- 2009 May Immune and genetic aspects of asthma, allergy and parasitic worm infections: evolutionary links -- Full text | PDF
- 2009 Feb Can helminths or helminth-derived products be used in humans to prevent or treat allergic diseases?
- 2009 Jan Do helminth parasites protect against atopy and allergic disease?
- 2009 Jan Schistosoma mansoni antigens modulate experimental allergic asthma in a murine model: a major role for CD4+ CD25+ Foxp3+ T cells independent of interleukin-10 -- Full text | PDF
- 2008 Nov Early infection with Trichuris trichiura and allergen skin test reactivity in later childhood (TTO)
- 2008 Oct Schistosoma japonicum infection modulates the development of allergen-induced airway inflammation in mice
- 2008 Sept Parasitic nematode modulation of allergic disease
- 2008 Mar 15 A helminth immunomodulator reduces allergic and inflammatory responses by induction of IL-10- producing macrophages -- Full text | PDF
- 2008 Feb 1 Helminth infection with Litomosoides sigmodontis induces regulatory T cells and inhibits allergic sensitization, airway inflammation, and hyperreactivity in a murine asthma model -- Full text | PDF
- 2008 Feb Association of atopy, asthma, allergic rhinoconjunctivitis, atopic dermatitis and intestinal helminth infections in Cuban children -- Full text
- 2007 Oct Protective effect of Schistosoma mansoni infection on allergic airway inflammation depends on the intensity and chronicity of infection
- 2007 Jun 13 Chronic helminth infections modulate allergen-specific immune responses: Protection against development of allergic disorders? -- Full text
- 2007 May Helminths, allergic disorders and IgE-mediated immune responses: where do we stand? -- Full text | PDF
- 2007 Feb 15 Helminth-derived products inhibit the development of allergic responses in mice
- 2006 Oct Worms and allergy -- Full text | PDF
- 2006 Aug Allergy controls the population density of Necator americanus in the small intestine (NA)
- 2006 Apr Environmental exposures, genetic predisposition and allergic diseases: one size never fits all -- Full text | PDF
- 2006 Apr Helminths can protect themselves against rejection inhibiting hostile respiratory allergy symptoms -- Full text | PDF
- 2006 Human allergy and geohelminth infections: a review of the literature and a proposed conceptual model to guide the investigation of possible causal associations -- Full text
- 2006 Geohelminth infections: impact on allergic diseases
- 2006 Glycans modulate immune responses in helminth infections and allergy
- 2006 Helminth-induced immunoregulation of an allergic response to food (food allergy)
- 2005 Nov 7 Suppression of allergic airway inflammation by helminth-induced regulatory T cells -- Full text | PDF
- 2004 Oct 13 Schistosoma mansoni infection modulates the immune response against allergic and auto-immune diseases -- Full text | PDF
- 2004 Jul The increased prevalence of allergy and the hygiene hypothesis: missing immune deviation, reduced immune suppression, or both? -- Full text | PDF
- 2004 Apr Helminth infection modulates the development of allergen-induced airway inflammation -- Full text | PDF
- 2004 Feb Regulation of allergy and autoimmunity in helminth infection
- 2004 Feb The innate allergenicity of helminth parasites
- 2004 Feb Helminth infections and allergic diseases: from the Th2 paradigm to regulatory networks
- 2004 The Induction of Immunoregulation Prevents the Development of Immunopathology in Chronic Helminth Infections and Allergy (book chapter from Allergic Diseases and the Environment)
- 2002 Sept 19 The effect of infections on susceptibility to autoimmune and allergic diseases
- 2002 Sept 15 An enteric helminth infection protects against an allergic response to dietary antigen -- Full text | PDF
- 2002 Jun Can intestinal helminth infections (geohelminths) affect the development and expression of asthma and allergic disease? -- Full text | PDF
- 2002 Nov 28 Th2-responses and immunomodulation in helminth infections and allergy (thesis)
- 2002 Apr 19 Allergy, parasites, and the hygiene hypothesis
- 2001 Nov 3 Independent effects of intestinal parasite infection and domestic allergen exposure on risk of wheeze in Ethiopia: a nested case-control study
- 2001 Nov The prevalence of parasite infestation and house dust mite sensitization in Gabonese schoolchildren
- 2001 Jul Th2 responses without atopy: immunoregulation in chronic helminth infections and reduced allergic disease
- 2000 Nov 18 Decreased atopy in children infected with Schistosoma haematobium: a role for parasite-induced interleukin-10
- 1998 Mar 1 A helminth-induced mucosal Th2 response alters nonresponsiveness to oral administration of a soluble antigen
- 1997 The Pro-allergic Influences of Helminth Parasites (PDF)
- 1996 Aug IgE, allergies and helminth parasites: a new perspective on an old conundrum
- 1993 sept Effect of anthelmintic treatment on the allergic reactivity of children in a tropical slum -- PDF
- 1993 Jun Modulation of the allergic reactivity of slum children by helminthic infection
- 1989 Nov 18 Hay fever, hygiene, and household size -- Full text | PDF This paper linked exposure to pathogens whilst young to the development of allergic diseases, and was key to the development of the Hygiene Hypothesis.
- 1976 Sept 25 Letter: IgE, parasites, and allergy | PDF This letter reported the first known successful therapeutic use of the hookworm, Necator americanus, in this case to resolve hay fever. (NA)
- 1976 Aug Serum IgE levels in white and metis communities in Saskatchewan This paper's author suggested that atopic disease is the price paid by some members of the white community of northern Saskatchewan for their relative freedom from helminth infestation and viral and bacterial infection.
Clinical Trials and observational studies[edit | edit source]
See Helminthic therapy clinical trials / Allergy
See Helminthic therapy clinical trials / Asthma
Media Coverage[edit | edit source]
- 2022 Feb 16 Making friends with enemies, unexpected solutions to our allergy epidemic - In focus, Malaghan Institute News
- 2020 Aug 17 Allergies, Asthma, COPD Treatments May Worm Their Way into Development - Genetic Engineering & Biotechnology News
- 2019 Mar 19 Hookworm Therapy for Autoimmune, Allergy and Asthma Relief - Dr Doni Wilson
- 2017 May 30 Would YOU swallow a glassful of worms to banish your allergies? - Helen Thomson, Daily Mail
- 2017 Feb 16 Parasites clue to why allergies are more common in developed countries - Emma Rayner, MedicalXpress
- 2016 Oct 27 Asthma And Allergies May Find An Unlikely Treatment In Hookworm Saliva - Oscar Williams, Huffpost Tech
- 2016 Aug 12 Could Worms In Your Gut Cure Your Allergies? - Michaeleen Doucleff, NPR Goats and Soda
- 2016 Mar 23 Parasites, Autoimmunity & Allergies - Moises Velasquez Manoff, High Intensity Health (Video)
- 2015 Nov 13 What do parasitic worms and our increasing allergies have in common? - Graham Rook, The Conversation
- 2015 Oct 29 An Evolutionary Basis for Allergies - Karen Zusi, The Scientist
- 2015 Mar 23 Parasitic Hookworm Infections and Autoimmune and Allergic Disease - Dr Alexander Rinehart
- 2013 Dec 1 Extreme science: diet of hookworms to tackle a bread allergy - Josh Davis, The Guardian
- 2012 Sept 4 An Epidemic of Absence: A New Way of Understanding Allergies and Autoimmune Diseases - Moises Velasquez-Manoff (Book)
- 2012 Jun 25 Man infects self with hookworms to treat severe allergies - Mel Borup Chandler, KSL.com
- 2012 Apr 18 Hookworms And Allergies - Doctor Infects Himself For Experiment - Catharine Paddock, Medical News Today
- 2011 Jan Nasal Allergies Nuked by Worms - John Scott, Foods Matter
- 2010 Apr 9 Fighting Allergies by Mimicking Parasitic Worms - Emily Singer, MIT Technology Review
- 2009 Nov Wriggling out of Food Intolerance - John Scott, Foods Matter
- 2009 May 26 Helminthic therapy allergies asthma - Interviews with scientists and patients using helminthic therapy to control allergies and asthma (Video)
- 2009 Mar 15 Todd Troutman Interview, Part 2 - A patient finds relief from severe allergies, YouTube (Video)
- 2009 Mar 15 Todd Troutman Interview, Part 1 - A patient finds relief from severe allergies, YouTube (Video)
See more: Helminthic therapy in the media
The anecdotal evidence[edit | edit source]
Below, are over 60 reports from individuals who have used helminths to treat their allergies, the vast majority of whom have experienced remission.
The first three reports are more detailed than the quotes that follow them.
- "... probably 1/4 of my coworkers are experiencing some degree of seasonal allergy troubles. And I have experienced almost nothing. I've sneezed a few times and that is it. What really did it for me was that I would normally be wiped out this time of year, but all weekend I was out and about doing all kinds of stuff with plenty of energy. This is such a radical difference over what had been a declining condition that I really can't be skeptical anymore. I never thought I would use language this absolute to describe the results of this therapy. I have no choice but to say "I have been cured." (Link expired)
- "... a dramatic improvement..." (Link expired)
- "... my hay fever and allergies are 100 percent gone!" (Link expired)
- "He is playing baseball this summer. An impossibility before since he is allergic to grasses, trees and flowers." (Link expired)
- "... its been just over three years since receiving hookworm therapy and... my MS and allergies are still in complete remission!" (Link expired)
- “Before helminths, I had a latex allergy and allergies to all the immunochemically similar foods (bananas, avocados, melons, etc.)... However, now I don't really worry about latex or bananas at all.” (Link expired)
- "Now, at nearly two years since I began helminthic therapy I am nasally more normal than at any time in my life." [2]
- * "... I increased my infestation level until my asthma and hay fever were cured." [3]
- "... free of asthma and allergies for the first time in twelve years." (Link expired)
- "But the big thing I’ve noticed is … I haven’t had hay fever so far this year. By this time last year I’d visited a doctor about my puffy eyes and fatigue. For the last couple of years I’ve had episodes in which my eyes swell up at the same time I’m hit with a hay fever attack. I lost a few days work as I essentially lay down and slept through the episodes… Anyway, this year, nothing. No hay fever… no puffy eyes..." [4]
- "(My son) started HT for asthma/allergies. (He) has been at a camp this week and has spent the large majority of the time outdoors, playing games etc. in a grassy field. He was covered with grass last night and said, "Mom, I don't itch!" [5]
- ☹️ "... over a 2 year period I have had two doses a total of 85. Unfortunately I did not benefit at all from the doses. I did have a significant response at the site of infestation. Huge raised red lump and blisters on both of the 35 & 50 doses." (Link expired)
- "Since my teenage years I have suffered with hay fever, dog allergy and a constantly blocked and running nose and sneezing fits. Now I can BREATH! My allergic issues have not completely disappeared but improved massively. Hookworm and kefir have made a huge difference. It has worked for me and I would recommend that anyone looking to alleviate allergic conditions give it a go and give it time." [6]
- "I'm a gal who has been allergic to the world since I was born (I was born with a head-to-toe body rash) and today I'm allergic to animals, pollens, dust, corn, wheat, fish, chocolate, bee stings, and maybe lactose. I had my first dose of worms on 4 November 2012 and my second dose at the beginning of this month. I have been eating things lately that would have made my skin explode, even just a month ago. It is very early but my asthma is vastly improved and so is my skin. I even ate a bit of corn yesterday and woke up with regular eyes, not swollen. Oh I ate gluten this weekend. Bread. Unimaginable! I've been so afraid of everything because of my violent reactions. It's like the world is becoming a more friendly place for me. I could get used to this fast. Think of all of the things I have yet to explore, and to eat." (Reported in a private message, Feb 2013)
- "I've also seen marked improvements in my allergies. While I still have symptoms they are 100% better than they were. Before the worms, I always had a stuffed or runny nose. People were always asking if I had a cold. Since my first dose, I've seldom had a stuffy nose. It's so great to be able to breathe! I seem to be less reactive to other allergy and asthma triggers as well." [7]
- "This spring, i had a good top off of hookworm… so they were fired up and ready to go when the allergens filled the air. i marveled at how well i was breathing. in years past my asthma and sinus allergies have been so bad i had to stay indoors huddled next to an air filter. not anymore. worms are great medicine." [8]
- "Almost a full year since inoculation (I've had 4 total), I can say with certainty now that helminthic therapy has been a life-changing success for me… I used to have allergies year round and couldn't breathe properly (which meant poor sleep). Nowadays I don't even remember the last time my nose was too stuffy to sleep well (I haven't taken any antihistamines in a while), and my family has mentioned that they don't hear me snoring anymore… I have never experienced a single side effect (other than the skin rash) from any of my inoculations, so I was always worried that it wasn't working out. The improvements have been so gradual and slow that I didn't notice them, so it's good that I didn't give up despite the road bumps along the way." [9]
- "Also as a nice plus of this treatment I saw my spring allergies that I have been dealing with for 7 years since I moved into my new home completely gone…" [10]
- “Another fantastic thing that these little guys did for me was my allergies are basically gone.. Before the parasites I could not be around cats for more then 10 min and my breathing would get so bad I would need my inhaler and sometimes I have had to go to the hospital for my breathing.. I have been doing experiments with my neighbors cats and I have been able to be their for 5 hours! So I'm hoping with more Hookworms things will only get better. Now I do not need inhalers or anything.. They are truly a miracle for me..” (Link expired)
- “So I've gotten a total of... 5 inoculations. Every 6 months or so I do it. I didnt feel any relief until 8-10 months into the therapy. I almost lost hope. The improvement was very gradual. I still have very minor congestion, and sometimes my eyes do itch, but it doesnt come close to the misery I felt before this therapy. I would say that my allergies are about 75% in remission. Foods I couldnt eat before now don't bother me. Including: almonds, all fruits, and a few other things I forgot I was allergic to. I still do feel a SLIGHT reaction from fruits. But I can eat a whole apple and only get some tingling now. Strawberries dont make my insides feel like exploding. All in all it has been a major blessing for me. I highly recommend it.” [12]
- ☹️ "My husband infected with 20 hookworms, then 20 a year later. Depression for him, which he's never had, began in year 2. The worms didn't help his walnut allergy. He became increasingly depressed and started on an antidepressant which helped a little. In April, he killed them and immediately felt better and quit the antidepressant." (Reported in a private discussion, Aug 2012)
- “I've always been one of those snufflers that have a constantly runny nose which turned into proper allergic eye scratching wheezy misery when exposed to all the usual triggers - dust, pollen, pets etc… (After inoculating with hookworms) my nose has totally dried up - I'm no longer a mouth breather! This years pollen season has been a breeze. I haven't once reached for the usual steroid nasal spray or antihistamines. All in all it's been a huge success for me…” [13]
- “I inoculated with my first dose of HW in September 2013. My third dose was in around April 2014. Sometime in July 2014 , 98% of my allergic reactions (hives on body –urtacaria- as well as swelling in my face - angioedema) went away. So I stopped taking the daily antihistimines I had been taking. Since then I have had only infrequent and mild break-outs… This is a big relief for me, as my face was swelling up and I was getting hives daily and weekly for two years… and now they seem to be in remission.” [14]
- “In the last few months, HDC have apparently stopped my 'seasonal' allergies, which were getting bad enough that I'd wake up daily with a sore tonsil on the side I slept, and developed a chronic case of bronchitis.” [15]
- “I've been taking it (HDC) for 3-4 months and I've barely sneezed so far this allergy season (usually peaks late May to mid June for me).” [16]
- “I’ve had severe hay fever ever since I can remember (I'm now mid-40s) and a few years ago I heard about a hookworm therapy trial taking place at Nottingham University, in the UK, for people with hay fever or asthma. I managed to get myself on the trial and ended up being 'infected' with 10 hookworms… and when the next summer came I was amazed to see the results: I felt myself starting to get hay fever and then it just stopped before the craziness kicked in. I kept feeling myself starting to react and then, before the reaction could go into overdrive, the symptoms just stopped. I was utterly amazed and managed to actually enjoy the whole summer for the first time I could ever remember.” (Link expired)
- “I'm getting very excited about my dust mite allergy daughter. In the last 6 weeks+ she has been showing tiny progressive signs of improvement. She started forgetting to take one of her daily allergy medications - there seemed to be no increase in allergy activity... two weeks later she began forgetting to take her nasal spray... no negative impact!! This is coming from a kid who would beg me to let her have extra doses of everything because nothing was working. She was miserable a couple of months ago, now it looks like the miraculous is happening right under our noses. I'm sure this last dose (of hookworms) will finish the job that is well started.” [17]
- “I had a lifelong allergy to cat dander (among other substances), and after 145 HW, that's gone.” [18]
- “For the last 2 weeks my son has been able to stroke and even hug the dogs without getting a severe allergic reaction… I’m finding it hard to comprehend actually that my son is able to hug and stroke the dogs - without washing his hands and still not get - swelling eyes, wheezing and rashes - by just hosting 5 hookworms!! Plus he hasn’t needed to use anti-histamines for weeks now. Wow! If he does over-do it with the dogs - like sitting stroking the dogs watching TV + hugging and kissing them (which was unheard of pre HW's) then he does sneeze and rub his eyes - but not the severe reaction he used to get... he is very happy! We were actually in a situation where I was considering having to get rid of the dogs, it was that bad - which was an unbearable thought for all of us especially my son - he said NO WAY!!” [19]
- “The first time i took just 30 hdc, my pollen and dust mite allergies--which manifested daily at all times of year as histamine reactions--disappeared pretty much for good. This is technically scientifically impossible, but its true.” [20]
- “The big improvement has been in my allergies. I hardly noticed them this summer. I had an occasional sneeze but not the constant sneezing, with itchy, watery eyes. Also, I got stung by a wasp which would have required administration of epinephrine and an ER visit in the past. I barely got a mark. I needed no medication.” [21]
- “Two years ago, one of our 12 y/o twins suffered a sudden onset of extreme and debilitating allergies to dust mite and cat dander. Associated asthmatic episodes, severe vocal chord dysfunction, chronic and debilitating hay fever, that was barely touched by prednisone, various antihistamines, nasonex etc... Her condition initially hospitalised her - at times for up to a week, where they would struggle to stabilise her with pred, nebs and antihistamines - once back at home and on a host of drugs she still couldn't go to school full time… Then came 2 doses of Necator americanus (NA), first 10 and then 20… Today, she regularly rides her bike 14 kms to school, even in cold weather. Rarely looks hay feverish - though sometimes has a few days of struggle. She plays saxophone (something she would never have contemplated starting 2 years ago!) and is hardly recognisable in comparison to the person who had to fight so hard for air 2 years ago. Her recovery has been nothing short of miraculous and the only thing that it can be attributed to is the NA…” [23]
- “… after 3 inoculations totaling 85 NA (25/25/35 at 6 month intervals) I am allergy and asthma free for the first time in about 20 years! … No horrible allergies and asthma that usually end up with bronchitis and once even pneumonia. I am so happy! The third inoculation was the tipping point. I did not see any signs of relief before that.” [24]
- "I've been on 30 HDC per month (for the last 9 months) and it has made an astounding difference for my allergies, and chronic sinusitis & rhinitis!! This is the first year in MANY that I haven't had to get a steroid (Kenelog) shot for my springtime allergies, and I haven't been absolutely miserable - at all!" [25]
- “My hay fever used to be so bad I would wake up gasping for breath in the middle of the night for months every spring - while I was taking a daily OTC allergy med. It was frightening. After inoculation (with NA), I breathe freely every spring with no allergy medication whatsoever. This result has lasted 3 years.” [26]
- “I have my eyes back! it has been 17 months since my dose (25 NA) and my eyes look normal again. I am not suffering from seasonal allergies anymore and my intensely swollen eyes (for years) look like they used to. I am also able to eat more food without issues now.” [27]
- “I am almost exactly 6 months post first time inoculation with NA (treating asthma, eczema, dust mite and multiple other allergies, IBS and the auto-immune skin blistering condition, pemphigus). I am nearly completely symptom free for the first time in years. No more sandpaper dry eyes, dry mouth, incessant post nasal drip, constant cough, joint pain and bone tiredness. My energy is up, better than it has been in 10 years. I can breathe again. I'm off the inhalers, off the drops, off the pills. I went into this with guarded expectations. This is better than I could have dreamed of.” [28]
- “Today, seven months after innoculating with 7 NA, my severe allergies and eczema are finally in a manageable state. It's full on Spring where I am and I realized I forgot to take my allergy meds today! I Even went outside and enjoyed the maple blooms and I'm allergic to them!! I can finally say I think the worm treatment has changed my life. I'm amazed and grateful.” [29]
- “I've had mine (NA) for over 7 years w/ periodic boosters along the way. My allergies (to pets) are gone.” [30]
- “I purchased 25 NA for my asthma, hay fever, and eczema. NOTHING doctors have given me has helped my itching eyes, save steroid drops which I only get when eyes infected. It's year-round, relentless, crazy-making. I dreaded spring. I would cry thinking about what more my eyes would go through with the pollen counts. But the change in my symptoms is remarkable. I have not taken one allergy pill this season yet, and I barely have to use eye drops. Not saying my eyes don't have a slight itch every once in a while, but I can stop myself instantly. Before I would rub and scratch them raw. I am simply over the moon. My mom and sister have never seen me so unconcerned about my health.... 62 years of terrible suffering, and this is the first time I feel what normal might feel like.” [31]
- “Before: Allergies to virtually everything that blows, asthma that required two different handheld inhalers several times a day, prednisone daily, ibuprofen max dose daily just to feel relatively fair. Now, 2-1/2 years later: No inhalers needed at all except very rarely (once or twice a year for the past two years), no prednisone, no Allegra, ibuprofen only rarely. I would say my allergy and asthma symptoms are 90% relieved since starting HWT.” [32]
- “My daughter (age 16) suffers from terrible allergies. She is allergic to all grasses, most trees, dogs , cats and dust mites. She gets asthmatic symptoms and needs an inhaler. We live in an area that has mild climate year round. So constant blooming of something. We tried allergy shots for 2+ years with no symptomatic relief. Also the pharma meds we’re starting not to work too. Eight weeks ago she inoculated with 5NA. She is at this time much relieved. I would estimate by about 70% or more. She has a clear nose and has not needed her inhaler for over a month. Last night she spent the night at a friends house who had a cat. She was fine. In my opinion this can be a real option for people with allergies.” [33]
- “I have severe pollen allergies and associated oral allergy syndrome. I've been doing helminth therapy with Necator americanus (human hookworm) for 2 years and it's completely resolved all my allergies, so long as I maintain a population of them in my gut.” [35]
- “I didn't get any benefit for my Oral Allergy Syndrome but hay fever was eliminated.” [36]
- “I’m 17 and when Mum suggesting inoculating to me I was very VERY hesitant because the whole idea sounded super gross, but really it’s absolutely no dramas and it’s helped my allergies beyond belief. I cannot recommend helminths highly enough.” [37]
- “I had doses of NA in July and October last year, and one in May this year, trying to resolve my extreme hay fever (2 months each year indoors). This year, my hay-fever was the mildest ever; just an occasional sneeze but no need to hide indoors. Cutting grass no longer bothers me at all. I love this new state of health and did not actually expect results so soon.” [38]
- “I am using NA for very bad pollen and sawdust allergies, as well as multiple chemical sensitivity. I can say that, being a very heavy year for allergies, I am able to live my daily life whereas previous years I would be so fatigued I spent over 14+ hours in bed a day. My sinuses seem to be clearer, and my allergy symptoms are way less.” [39]
- “About a year ago I started off with 5 NA, then went to 15 and now have about 30. I used to be highly allergic to cats. I could tell someone had cats simply by my itchy eyes as soon as I entered their house. That has disappeared. My sister has 2 cats and my last visit was uneventful.” [40]
- ☹️ "When I used NA a few years ago for my allergies I was hoping that they'd cure me and I could be free of this crap once and for all… After two years, there was no improvement, so I was pretty disappointed." [41]
- "I have been taking 30 HDC every 3 weeks since February (i.e., 5 months) and have had NO HAY FEVER for the entire season. I have also barely reacted to a single insect bite, just a single one on my arm, in all that time. Bite hives have been ruining summers for me until now." [42]
- "I had no allergies (except black hair dye) until soon after the birth of my second child. Weird! I developed what seemed like chronic severe hayfever which I tolerated for 3 years for lack of a better option. Then suddenly one morning I woke to a swollen painful red face which after a week had me in A&E with a full body rash. Every time I had one of these flares Dr's prescribed prednisone and corticosteroids neither of which worked and they actually admitted it seemed to be making it worse. After seeing a naturopath and cutting out Dairy/gluten/sugar/walnuts/almonds I finally got some relief. I started the worms around this time too, after seeing the documentary on 'Sunday'. I have had 3 doses of NA - 3, 5 and 10. I'm sure it's working because around 3 months (after each dose) my sinuses stuff up again. I keep to the strict diet and haven't had a proper flare up all year!" [43]
- "I started my first dose of 5 NA 5 weeks ago (and) I've had great improvement in severe allergy symptoms (rhinitis, plugged ears, itchy throat, asthma and eczema) while landscaping outdoors." [44]
- "I'm taking 40 HDC/week, and while it hasnt removed my nasal allergies completely, it has greatly reduced the medicine I need. I'm off flonase, nasacort and zyrtec. Now I only take 2 sprays of azelastine daily + one allegra." [45]
- "I’ve been using NA (for 18 months). I definitely noticed this last spring and summer literally no need for any antihistamines. I would normally have such bad sneezing fits I’d regularly bleed as well as wake myself up in the night itching the roof of my mouth with my tongue. During the summer of my first dose I didn’t notice any allergen impacts however the following was amazing. I used to always use Flonase and I believe I used it all of twice in the early season but think I was just being apprehensive." [46]
- "I have been using 5 NA monthly exclusively (for the past 12 months). On the first few doses, I didn't really notice an immediate improvement, and I did have some allergy flares for a week after each inoculation where my runny nose got a lot worse. (After 8 months) things somehow got a lot better. The dust mite allergy that I had for years went from a debilitating condition to a minor nuisance… I’m going to stick with the current dosing routine until my allergies stop for good." [47]
- "I noticed after my first 4 or 5 doses of TSO that I no longer had uncontrollable sneezing fits from cottonwood trees. Prior to starting with helminths, symptoms included exceptionally itchy eyes, running nose and uncontrollable sneezing fits. One year the sneezing was so severe that I cracked a rib and dislocated two others adjacent to it. Major quality of life improvement with TSO on board." [48]
Also see:
Selecting a suitable helminth species to treat allergies[edit | edit source]
To identify the best helminth species to treat each type of allergy (contact, food, or seasonal/ environmental) see this list.
How to obtain and use these organisms, as well as what to expect from the treatment, is all explained in detail elswhere on this site. The best place to begin is here: Introduction to helminthic therapy.