Urticaria can be divided into acute spontaneous urticaria, chronic spontaneous urticaria, induced urticaria, etc. The main treatment is drug therapy. 1. Acute spontaneous urticaria: patients need to be treated with H1 receptor antagonists such as Epinastine, Cetirizine, etc. Vitamin C and calcium can also be applied to reduce vascular permeability. Those with abdominal pain can be treated with antispasmodic drugs such as scopolamine and atropine. If the patient’s condition is serious, accompanied by shock and other symptoms, immediate resuscitation is required, such as subcutaneous injection or intramuscular injection of 0.1% epinephrine. Some patients can also be injected intramuscularly or intravenously dexamethasone, hydrocortisone and other glucocorticoids, laryngeal edema respiratory obstruction when feasible tracheotomy. 2. Chronic spontaneous urticaria: patients can be treated with antihistamines such as loratadine and olopatadine, H2 receptor antagonists such as ranitidine and cimetidine, and anti-leukotriene drugs such as montelukast and zalustat. If the effect of the above drugs is not satisfactory or ineffective, then biological agents (omalizumab) and immunosuppressants (cyclosporine) can be applied. 3. Induced urticaria: patients also need to apply the above antihistamines, but the skin scratch disease can be combined with the use of ketotifen or UVA1 and narrow-wave UVB, cholinergic urticaria can be combined with the use of danazol, ketotifen and other drugs. Urticaria patients are advised to follow the doctor’s instructions to use medication, not to use drugs. Daily can also be used externally glycerine lotion, Benadryl cream, etc. to achieve the purpose of astringent, anti-itching.