Food allergy is an important factor leading to urticaria, so children with urticaria must avoid eating to avoid getting worse repeatedly. Specific types of taboos include heterogeneous protein, such as fish, shrimp, eggs, milk, silkworm chrysalis and so on. Nuts, such as peanuts, walnuts, hazelnuts and pistachios. Common fruits that cause allergies, including mangoes, peaches and strawberries, should be noted. You can also go to the hospital to improve allergen testing. If there are allergic substances, avoid eating them. Urticaria is related to the immune dysfunction of patients. After suffering from urticaria, in addition to taboos, we should also pay attention to rest, and the recovery of immunity is also helpful to the treatment of urticaria. Don't eat spicy and greasy food, and don't eat hair products such as eggs, seafood, beef and mutton. If you breastfeed, your mother should also pay strict attention to her diet. You can eat more fresh fruits and vegetables and foods with high vitamin C content. Infantile urticaria is mostly caused by allergies and poor physical resistance. Usually let the baby drink more water and exercise more to improve the body's resistance. You can test allergens and avoid touching such things in the future.