Sun allergy dermatitis may cause itching, pain, oozing and other symptoms, and should be treated with general treatment and medication after diagnosis. 1. General treatment: Do a good job of sun protection measures, do not go out when the sun is full, and do not scratch the itchy parts with your hands, to prevent the skin from breaking and then secondary infection. Also avoid eating photosensitive drugs and food, do not drink and smoke, keep facial skin clean. 2. Medication: anti-inflammatory treatment can be carried out by using drugs such as Dinaid cream, tacrolimus ointment, etc. When there is exudation, boric acid solution can be used to carry out cold and wet compress treatment. When the symptoms are more serious, you can use the appropriate use of prednisone and other drugs, but also with oral cetirizine and loratadine and other antihistamine treatment. In the use of drugs for treatment, patients should not indiscriminate use of drugs, should follow the doctor’s guidance, safe and reasonable use of drugs.