Spring and summer are the high incidence of skin season, we have many patients suffering from various season related skin diseases come to the hospital every day, coupled with people are now very concerned about themselves, the community is full of many specious ideas and methods, so it is particularly important to understand their own skin, using the correct skin care. A. Why this season is good for skin diseases: 1. Sunlight, enhanced role of ultraviolet light – the main reason for skin aging, photoallergy; 2. Increased plant pollen – the main reason for contact allergy; 3. Food and fruits are abundant — some of the causes of allergies; 4, people’s increased outdoor activities, contact factors, mental factors — artificial causes of dermatitis. Second, leading to skin diseases are: 1, solar dermatitis, sunburn, chloasma; 2, seasonal dermatitis, facial reoccurrence of dermatitis (peach fungus); 3, perioral dermatitis, urticaria, eczema, acne; 4, neurodermatitis, itchy rash, pruritus. Countermeasures: Treatment: 1, find the causative agent, (environment, diet, mental); 2, anti-allergy, (Chinese and Western drugs, internal and external use) Prevention: 1, understand their own skin conditions, so targeted, (oily, dry, mixed, sensitive); 2, skin care, wash your face with warm water after going out, (moisturizing moisturizer, toner, sunscreen, mask, makeup remover, advocate the use of formal products.) 3, diet: drink more water, vegetarian diet, easy to eat less allergic food (amaranth, purple cabbage, mud snail, etc., mango, pineapple, etc.); 4, once mild dermatitis appears, you can first do cold compresses, do not apply ointment indiscriminately.