Patients with urticaria generally do not need to avoid food if there is no special. It is recommended that patients clarify their own allergic food, or observation found that a certain food caused by recurrence, aggravation of the disease, should promptly avoid eating such food. Urticaria belongs to a kind of allergic diseases, due to a variety of factors stimulation and lead to increased permeability of small blood vessels under the skin mucosa and temporary expansion and the formation of a manifestation of erythema, the change of the air masses. Food is one of the more common allergens, such as seafood, eggs, milk, etc., but not all people will be allergic to such food, it is recommended that the patient to clarify their own allergies in time, or aggravate the condition of the food avoided in a timely manner, if there is no special need to avoid. For recurring urticaria, when the disease should be timely consultation, can improve the allergen test, clear allergens to avoid.