The question of whether COMT (catechol-O-methyltransferase) can help with allergies is not clearly supported by current evidence. COMT is an enzyme involved in breaking down catecholamines like adrenaline and dopamine, which modulate immune and inflammatory responses. Some studies have linked certain COMT variants to asthma risk or elevated IgE levels, but findings are inconsistent and mostly come from population-level GWAS. The clinical utility for individual allergy management is uncertain. Consumer DNA tests often include COMT, but claims about allergy relief or prevention are speculative and lack robust human trials. At present, there is no strong evidence that knowing your COMT genotype can guide allergy treatment or prevention. Allergy management should rely on proven strategies: allergen avoidance, antihistamines, corticosteroids, and immunotherapy. Genetic testing may provide background context but should not replace standard medical advice. Evidence level: unclear.
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