Summer dermatitis is an inflammatory skin condition caused by the heat and humidity of summer. Summer dermatitis cannot be cured, but it can be improved by general treatment, topical medication and oral medication. 1. General treatment: patients should try to avoid prolonged exposure to high temperatures and humid environments. Try to wear loose, cotton clothing, keep the skin clean and dry. 2. Topical medication: For acute summer dermatitis, boric acid solution can be used externally for wet compresses. Can also be used externally with glycerine lotion to astringent itching. It can also be improved by glucocorticoid drugs, such as Dinaid cream. 3. Oral medication: when the lesions appear severe itching, can be improved by antihistamines, such as levocetirizine hydrochloride, olopatadine hydrochloride and so on. For the existence of summer dermatitis patients, it is recommended to go to the regular hospital for examination in a timely manner, under the guidance of a professional doctor for standardized treatment.