Can Progesteron help with allergy?

Progesterone is a sex hormone with immunomodulatory properties. Some studies suggest it can influence allergic responses, for example by shifting the TH1/TH2 balance or inhibiting mast cell degranulation. However, progesterone is not a standard treatment for allergies in clinical practice. The evidence is mostly mechanistic or based on in vitro and animal studies, with limited human data from small observational trials; robust randomized controlled trials are lacking. Hormone therapy also carries potential side effects (e.g., mood changes, thromboembolic risk). For common allergic conditions like hay fever or asthma, established treatments (antihistamines, corticosteroids, allergen immunotherapy) remain first-line. Considering progesterone only makes sense if there is a clear hormonal trigger, such as perimenstrual asthma exacerbations, and only under medical supervision. Self-administration is not advised. In summary, while there is a plausible biological link, the clinical evidence is too weak to recommend progesterone for allergy relief.