Skin is the first protective barrier for human body to deal with environmental damage. After the beginning of autumn, the continuous high temperature weather in many places easily leads to dermatitis, rash and other common skin diseases. Experts remind that under high temperature, attention should be paid to sunscreen, timely clean the skin, and light diet to effectively protect the skin. Tong Zhongsheng, chief physician of Wuhan No. 1 hospital, said that high temperature, sunny and hot weather will bring hidden dangers of skin damage, mainly manifested in: long-term direct ultraviolet radiation will cause photosensitive reaction of skin, cause sunburn, and lead to solar dermatitis. Sweating increases, and the wrinkles on the skin surface are moist, which is easy to breed bacteria and fungi and cause infectious skin diseases. Under the hot environment, the skin is subject to more heat spurs, aggravating the inherent skin diseases such as eczema. Experts remind that personal diet and cleaning habits will also affect the skin condition under high temperature environment. After eating celery, spinach, fig, mango and other photosensitive foods, the possibility of skin redness, swelling and rash will increase. Excessive cleaning, scalding and irritation can also damage the skin. Tong Zhongsheng said that when local skin is found to have symptoms such as redness, swelling, burning, pain, and desquamation, you can immediately apply cold compress or rinse with cold water to constrict blood vessels and improve redness and swelling. If the symptoms still cannot be relieved, go to a professional medical institution for treatment, follow the doctor's advice, and use cold therapy and external medicine. At present, many areas still frequently trigger high temperature warnings. Experts suggest that, first, sun protection measures should be taken to reduce direct ultraviolet radiation. Try to avoid going out when the light is strong. When going out, you need to take an umbrella, wear light colored clothes, and choose sunscreen products with strong defense ability. Second, clean the skin in time to keep the surface clean. Wash your face with clean water, but not more than 3 times a day. Third, keep local skin dry and avoid bacterial and fungal infections. In addition, it is also necessary to replenish water and eat a light diet in time. (outlook new era)