Red and itchy skin after sun exposure is usually seen in solar dermatitis, where the patient’s skin can often be itchy, flushed, swollen and burning. The symptoms can be relieved by sun protection, topical medications, oral medications and other means. 1. Sun protection: Get out of the light environment in time to avoid sun exposure again. 2. Topical medications: such as glycerine lotion, zinc cream, etc. When there is severe acute dermatitis, you can use diluted compound aluminum sulfate solution wet compresses to relieve the discomfort of the skin after sun exposure. 3. Oral medication: antihistamines have an anti-allergic effect, can reduce itching symptoms, common loratadine, cetirizine and so on. Sunburn serious pain in the affected area, oral prednisone, aspirin and other drugs to control inflammation, so that the pain is reduced, to promote skin repair. Red and itchy skin after sunburn try to avoid scratching the affected area, to prevent the skin from breaking down and causing infection, while the medication should be under the guidance of a doctor.