Skin photoallergy, firstly, should be treated with light avoidance, avoiding ultraviolet light, bright light for a long time, and secondly, need to apply sunscreen externally. Finally, in case of allergy, anti-allergic treatment is needed. Oral treatment can be performed by taking oral Orotadine hydrochloride tablets, one in the morning and one in the evening, combined with Epinastine hydrochloride capsules, two in the evening every day, together with compound glycopyrrolate capsules three times a day, two at a time. If the disease is more serious, you can also intramuscular injection of compound betamethasone injection. If the itching is more intense, it can be treated with intramuscular injection of chlorpheniramine maleate. In terms of topical medication, you also need to choose safe, non-irritating medication, such as facial candienide cream.