The phenomenon of summer skin redness may be a normal physiological phenomenon, there may be pathological reasons, such as solar dermatitis, etc., which should be based on different causes of different therapeutic measures, such as physical, medication and so on. 1. Normal physiological phenomenon: Due to the high temperature in summer, the blood circulation of the skin will be accelerated, the capillaries will be relatively dilated, which may appear the phenomenon of redness of the skin, which can be alleviated by wearing a sun hat and other physical measures. 2. Pathological causes: If you receive too much ultraviolet radiation in the summer, it will cause solar dermatitis, skin redness, itching and other symptoms, which can be treated with oral antihistamines, such as loratadine or cetirizine hydrochloride tablets, combined with topical glucocorticosteroid creams, such as mometasone furoate, hydrocortisone butyrate and so on. At the same time, to avoid ultraviolet sun exposure, to reduce the outing, if go out to do a good job of sun protection. If the above symptoms occur and normal physiological phenomena are ruled out, it is recommended to go to the hospital in time to consult the doctor, and do not blindly use medication on your own.