Understanding hay fever: How to support irritating symptoms, naturally

What is hay fever, what may link it to wider bodily systems and how might you naturally support yourself?

Introduction

Hay fever, medically known as allergic rhinitis, is a common allergic reaction to airborne substances such as pollen, dust mites, or pet dander. From a functional medicine standpoint, which underpins all my work as a nutritional therapist, understanding the root causes and holistic management strategies in line with scientific evidence is essential for effective relief.

Onset and Symptoms of Hay Fever

Hay fever typically manifests during specific seasons when pollen counts are high, although indoor allergens can cause year-round symptoms. Common signs include:

  • Sneezing

  • Runny or blocked nose

  • Itchy, red, or watery eyes

  • Itchy throat, mouth, nose, or ears

  • Coughing

  • Fatigue

These symptoms arise when the immune system overreacts to harmless substances, releasing histamine and other chemicals that cause inflammation and irritation.


The Role of Histamine in Hay Fever

Histamine is a compound involved in local immune responses. When an allergen enters the body, immune cells called mast cells release histamine, leading to the characteristic symptoms of hay fever. This process is a protective mechanism, but in hay fever sufferers, it becomes overactive.

Histamine's Impact Beyond Hay Fever

Beyond allergic reactions, histamine influences and is influenced by various bodily functions, which is why, as a nutritional therapist, I look at my clients’ symptoms holistically, as there may be more at play:

  • Digestive System: Histamine is involved in regulating stomach acid secretion. Excessive histamine can be a contributory factor in digestive issues such as poor digestion and absorption of nutrients from food, gas, reflux, bloating or diarrhoea.

  • Nervous System: As a neurotransmitter (a chemical messenger), histamine affects sleep-wake cycles. Elevated levels can disrupt sleep, leading to insomnia or poor sleep quality.

  • Hormonal Balance: Histamine can influence hormone release, potentially affecting menstrual cycles, menopausal symptoms and contributing to headaches or migraines. There is also some, limited scientific discussion around the effects of anti-histamines on male sexual health and fertility, although the complex interaction with hormones indicates more studies are really needed in this area.

If you’d like to discuss this more, get in touch. I offer a free chat for anyone concerned about symptoms they may have; I can provide low-histamine meal and recipe plans for clients alongside other support, as required.

Conventional treatments

Over-the-counter antihistamines are commonly used to manage hay fever symptoms. Whilst they can be effective for many, they may cause side effects such as drowsiness or dry mouth. It's essential to consult with a healthcare professional before starting any medication.

Natural Approaches to Managing Hay Fever

Functional medicine emphasises addressing the root cause and supporting the body's natural defences. Several natural remedies have been studied for their potential benefits. These may be used, with the support of a healthcare professional, alongside any conventional medical support:

Nutrition

  • Quercetin: A flavonoid found in foods like onions, apples, and berries, quercetin has antioxidant and anti-inflammatory properties. It helps to stabilise mast cells, potentially reducing histamine release. Incorporating quercetin-rich foods or even supplements (only with professional support), may help in the management of hay fever symptoms.

  • Vitamin C: Known for its antihistamine properties, vitamin C may support a reduction in histamine levels. Consuming vitamin C-rich foods such as citrus fruits, strawberries, and bell peppers, may help your body to work at alleviating symptoms.

  • Bromelain: An enzyme found in pineapples, bromelain has anti-inflammatory effects and may reduce nasal swelling and mucus production.

  • Probiotics: A healthy gut microbiome supports immune function. Probiotics found in fermented foods like yoghurt, kefir, and sauerkraut may help modulate immune responses and reduce allergy symptoms. It’s essential to consult with a health professional regarding probiotics, particularly if you are aware you have digestive issues, as the type and amount of probiotics can aggravate certain conditions.

  • Local Honey: Some believe that consuming local honey can help the body adapt to local allergens, potentially reducing symptoms. However, scientific evidence supporting this is limited.

Lifestyle Modifications

In addition to dietary interventions, certain lifestyle changes may help to manage hay fever:

  • Nasal Irrigation: Rinsing nasal passages with saline solution can remove allergens and reduce congestion; using a saline based nasal spray (readily found alongside other nasal sprays in your local chemist) is an easy and natural way to do this.

  • Environmental Control: Keeping windows closed during high pollen counts, using air purifiers, and regularly cleaning living spaces can minimise allergen exposure. I have some recommendations for air purifiers (although they are not cheap) - get in touch if you’re interested in those (I have no affiliations!).

  • Stress Management: Chronic stress can weaken the immune system. Personalised nutritional gut health support alongside practices such as yoga, meditation, or deep breathing exercises can support overall health.

Conclusion

Hay fever is a common condition that can significantly impact quality of life. Understanding the role of histamine and its broader effects on the body provides a little insight into why looking at your overall health in a personalised way may support more comprehensive management. While conventional medications offer relief, natural remedies and lifestyle modifications can also play a crucial role in supporting the body's resilience against allergens. As always, it's essential to consult with a healthcare professional before making any significant changes to your health regimen.


It’s tough to make and sustain change alone. Having me in your corner can make it simple, doable, and most of all, enjoyable. Contact me if you’d like some support.


References

Beall, G.N. and VanArsdel, P.P. Jr. (1960) 'Histamine metabolism in human disease', The Journal of Clinical Investigation, 39(4), pp. 676–683. Available at: https://pubmed.ncbi.nlm.nih.gov/13797877/

 Bazzucchi, I., Patrizio, F. and Ceci, R. et al. (2019) 'The effects of quercetin supplementation on eccentric exercise-induced muscle damage', Nutrients, 11(1), p. 205. doi: 10.3390/nu11010205

 Duner, H. and Pernow, B. (1958) 'Urinary excretion of histamine in bronchial asthma', Acta Medica Scandinavica, 161(5), pp. 361–367. doi: 10.1111/j.0954-6820.1958.tb15551.x

Greiner AN, Hellings PW, Rotiroti G, Scadding GK. Allergic rhinitis. Lancet. 2011 Dec 17;378(9809):2112-22. doi: 10.1016/S0140-6736(11)60130-X. Epub 2011 Jul 23. PMID: 21783242.

 Grob, D. (1952) 'The renal excretion of histamine and histidine in man, and the effect of adrenocorticotropic hormone (ACTH) and cortisone administration', Bulletin of the Johns Hopkins Hospital, 90(5), pp. 341–367. Available at: https://pubmed.ncbi.nlm.nih.gov/14925636/

Head K, Snidvongs K, Glew S, Scadding G, Schilder AG, Philpott C, Hopkins C. Saline irrigation for allergic rhinitis. Cochrane Database Syst Rev. 2018 Jun 22;6(6):CD012597. doi: 10.1002/14651858.CD012597.pub2. PMID: 29932206; PMCID: PMC6513421.

 Mitchell, R.G., Logan, G.B., Peters, G.A. and Henderson, L.L. (1954) 'Urinary excretion of histamine in patients having asthma and hay fever: observations on changes produced by administration of cortisone', Journal of Allergy, 25(6), pp. 504–510. doi: 10.1016/s0021-8707(54)90030-1

Mondillo C, Varela ML, Abiuso AMB, Vázquez R. Potential negative effects of anti-histamines on male reproductive function. Reproduction. 2018 May;155(5):R221-R227. doi: 10.1530/REP-17-0685. Epub 2018 Mar 9. PMID: 29523718

 Pauff, J.M. and Hille, R. (2009) 'Inhibition studies of bovine xanthine oxidase by luteolin, silibinin, quercetin, and curcumin', Journal of Natural Products, 72(4), pp. 725–731. doi: 10.1021/np8007123

Ried, Karin., Travica, N., Paye, Y. and Sali. (2022). ‘Effects of a Probiotic Formulation on Seasonal Allergic Rhinitis in Adults—A Randomized Double-Blind Placebo-Controlled Trial: The Probiotics for Hay Fever Trial’ Frontiers in Nutrition, Volume 9. DOI=10.3389/fnut.2022.887978

 Weng, Z., Zhang, B., Asadi, S., Sismanopoulos, N. and Butcher, A. (2012) 'Quercetin is more effective than cromolyn in blocking human mast cell cytokine release and inhibits contact dermatitis and photosensitivity in humans', PLOS ONE, 7(3), p. e33805. doi: 10.1371/journal.pone.0033805

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