The winter climate has two main characteristics: dryness and coldness. Dry air can lead to a decrease in skin water content, and a cold climate can lead to a decrease in sebaceous gland and sweat secretion, both of which can lead to a decrease or even damage to skin barrier function. Therefore, if there is a change in the way you take care of your skin, there is a higher likelihood of dermatitis, eczema, frostbite, and sensitive skin. How do you take care of your skin in winter? 1, to avoid excessive cleaning. Because excessive cleaning will make its own sebum film loss. For example, bathing, summer can be once a day, or even twice, winter recommended 2-3 times a week; bathing time to 5-10 minutes is appropriate, not too long; bath products to moisturizing type, if the skin is particularly dry kind, it is not recommended to use the whole body bath products, can be used in the parts prone to sweating; water temperature can not be too hot, especially itchy skin, although it can make the skin temporarily stop itching, but It is like drinking hemlock to quench your thirst, the skin problem will be more serious. The time to wash your face should not exceed one minute, water or mild cleansing products to wash your face, the water temperature is also not easy to be too high, to be able to accept their own low temperature or even cold water wash face best. 2, the use of moisturizing and emollient products. The skin of people who do not use any skin care products is actually often better than those who abuse them. Of course, the premise must be after moderately clean skin, if the skin is still tight after half an hour, you can use moisturizing products, especially for dry skin, atopic dermatitis, ichthyosis patients. 3.Strengthen physical exercise. On the one hand, it can promote blood circulation and prevent frostbite; on the other hand, it can promote the secretion of sebaceous glands and sweat glands and enhance the function of the skin barrier. In view of the strong haze in the morning, morning exercise is not recommended. 4. Pay attention to keeping warm. Frostbite is common in children or adults with poor peripheral microcirculation. Keeping warm and protected from moisture, not wearing tight shoes and socks, and promoting local blood circulation are conducive to frostbite prevention. Frostbite should not be soaked in hot water or baked over a fire immediately after exposure; it should be treated actively if accompanied by other related diseases. For those with recurrent frostbite, the local skin can be irradiated with a sub-erythematic amount of ultraviolet or infrared light before winter to promote local blood circulation. 5. Sun protection. For many places, winter out of the sun is simply a rarity, can not wait to get close, how can go to sun protection? Sun protection is extremely important to slow down skin aging. UV rays are available all year round, and the UV rays are much better in winter before 10 a.m. and after 3 p.m. This is the best time for intimate contact. In addition, in the snow, highland areas will be more sun protection, these situations UV rays on the skin is almost as deadly as the summer.