Sweat herpes on hands in summer, also known as dyshidrotic eczema, is a symmetrical, recurrent blistering desquamative disease of the hands and feet. 1. The cause of herpes sweat is still unknown, may be related to allergic factors, skin infections, mental factors, etc., is now believed to be an endogenous skin eczema-like reaction. Clinical symptoms are mainly manifested as symmetrically distributed blisters deep in the epidermis, accompanied by itching and other discomforts. Regular recurrence throughout the year, after the season will be self-healing, such as summer herpes sweat on the hands in the fall after the general will be better on their own. 2. The treatment of sweat herpes is usually topical glucocorticosteroids, such as dianabed cream, tretinoin cream and so on. Local recurrent flaking, dry and painful, can be used 2% ~ 5% salicylic acid ointment, 10% urea lipids. Usually dietary attention to eat less spicy stimulating and seafood, fish and shrimp and other ingredients that can easily cause allergies. Sweat herpes patients are advised to go to the regular hospital dermatology consultation, follow the doctor’s instructions standardized treatment, do not self-medication.