Urticaria is an allergic disease, dietary attention should be paid to avoid eating suspected allergenic substances, it is best to perform allergen screening. For allergens screened as positive food try to avoid using, at the same time in the appearance of the rash during the need to avoid drinking alcohol, do not eat spicy, fish and fishy seafood, as well as beef and mutton and other exotic proteins, so as not to lead to the aggravation of the allergic reaction. If it is caused by drug allergy, you also need to pay attention to avoid the use of allergic drugs with the same chemical structure of the drug, in order to avoid allergic reactions. Urticaria patients with gastrointestinal discomfort, you also need to avoid eating hard food, it is best to eat only soft and easily absorbed food, so as not to burden the gastrointestinal tract, resulting in abdominal discomfort aggravation, but also need to pay attention to avoid alternating hot and cold stimulation.