Redness and pain of the skin after sun exposure should use topical drugs and systemic drugs and pay attention to sun protection. 1. Topical drugs are mainly used for anti-inflammatory, soothing, pain relief, can be in the skin redness and pain in the parts of the local use of glycerine lotion and glucocorticoid ointment, severe cases can use 3% boric acid solution wet compress. 2. Systemic drugs can be oral antihistamines such as loratadine, vitamin C, non-steroidal anti-inflammatory drugs such as ibuprofen, etc., and oral glucocorticosteroids can be used in severe cases to reduce the symptoms of redness and pain. 3. Attention should be paid to sunscreen, sun-exposed parts, especially has had redness and pain after sun exposure to the parts of the advance use of physical or chemical shading agents such as 5% titanium dioxide cream, benzophenone, etc., according to their own skin type to choose the appropriate sunscreen index of the sunscreen agent. If you have redness and pain after sun exposure, you need to consult a doctor as soon as possible to develop an individualized diagnosis and treatment plan, so as not to delay the condition.