Urticaria is a disease caused by allergic factors and anti-allergy is necessarily the most basic treatment. For chronic urticaria that is recurrent for more than 6 weeks, the most common oral medications can be chosen for anti-allergy treatment, such as oral loratadine tablets, cetirizine tablets or antihistamines such as epinastine, epinastine, azelastine, also known as anti-allergy drugs. If the effect of the medication is average, you can also choose to inject the patient with BCG polysaccharide nucleic acid, etc. to regulate the patient’s immune function. It is also necessary to pay attention to the diet must eat less allergenic food, such as mango, pineapple, seafood, etc., these foods are very easy to cause allergies, in this regard must be avoided.