Sun allergy on the face, may be polymorphic sun rash, it is recommended to timely get out of the environment, local topical itching, glucocorticoid ointment, if necessary, with oral antihistamine treatment. 1. Get out of the environment: summer ultraviolet radiation is relatively strong, often in the external environment, do not pay attention to sunscreen, may lead to skin redness, swelling, itching. It is recommended to get out of the environment with strong ultraviolet rays to avoid further aggravation of allergic symptoms. Apply cold compresses locally to lower the skin temperature. 2. Topical medication: Sunburn allergy may cause significant itching, can be applied topically with glycerite lotion, Dinhydrin cream to reduce inflammation and relieve itching. 3. Oral medication: Oral antihistamines, such as fexofenadine, levocetirizine hydrochloride, diclofenac tadalafil and other drugs, can relieve itching. It is recommended to pay attention to sun protection when going out, using umbrellas, sun hats, sunscreen, which can reduce the damage of the sun. If necessary, go to the dermatology department of the hospital, combined with the doctor’s advice, give the appropriate drug treatment.