While a popular cure in many areas of the US, there is little scientific evidence supporting this hypothesis. For example:
- This small study from the Annals of Allergy, Asthma and Immunology found no improvement beyond a placebo
- This article from the International Archive of Allergy and Immunology indicated some benefit to using honey linked to the allergic trigger (Birch pollen in this case) can provide benefit when used in conjunction with traditional medication
However, it is fair to say that these trials are limited in scope and contain small sample sizes that could result in non-applicable results for a larger population.
However, the rationale for this myth may be the result of honey's efficacy in reducing coughs (a frequent symptom of seasonal allergic reactions) as shown in this study from the Archives of Pediatrics and Adolescent Medicine.