Dietary therapy for chronic urticaria.

Chronic urticaria is characterized by spontaneously occurring pruritic wheals with angioedema (∼ 40% of cases) for 6 weeks or more. It is assumed that such patients are symptomatic most days of the week. An exogenous cause is rarely found; about 45% of patients have associated autoimmunity, with antibody to the IgE receptor present in 35% and anti-IgE in 5… (More)