Sunburn on the back, it is recommended to promptly detach from the environment, local wet compresses, topical medication application, with oral medication if necessary, or go to the hospital to ask the doctor for treatment. 1. Get out of the environment: The skin is exposed to strong sunlight, causing itching, flushing, swelling and burning. It is recommended to get out of the environment in time to avoid further aggravation of sunburn. Use a clean cold towel on the skin redness, scalding place, has a sedative effect, can quickly reduce the temperature of the skin. 2. Topical medication: the skin has obvious burning, redness, swelling, itching, pain and other symptoms. Can be applied externally with glycerine lotion, hydrocortisone sulfate ointment to relieve skin inflammation, swelling and pain. 3. Oral medication: If necessary, with oral loratadine tablets, ebastine, levocetirizine hydrochloride and other antihistamines, can reduce the release of histamine in the skin, which is conducive to the relief of symptoms. 4. Go to the hospital for treatment: sunburned skin is more serious, accompanied by blisters and peeling, it is recommended to go to the hospital in time. Through the sterile needle to pick blisters, external application of isacridine solution, to avoid friction on the skin, prohibit hot water shower. Localized redness, swelling, blisters, and erosion after receiving strong sunlight exposure are recommended to seek medical attention promptly. If the symptoms are serious, you can call 120 for help to avoid dangerous situations.