Urticaria is a skin disease caused by a variety of reasons, urticaria will appear erythematous, papules, usually can fade on their own, acute urticaria can affect the lives of patients. The main reasons for the recurrence of urticaria are as follows: 1. If the cause of urticaria is not found, the patient is still repeatedly exposed to the allergen, and urticaria is prone to recurrence. 2. The resistance of the body is low, and the patient’s physical quality and low immunity can also lead to recurrence of urticaria, such as patients with advanced tumors, patients with medical system diseases, as low resistance can induce recurrence of urticaria. 3, daily life without attention, often eat spicy, greasy, stimulating food, especially the frequent consumption of seafood, are likely to cause recurring urticaria.