Every winter the weather becomes cold and dry is the high incidence of pruritus, especially the middle-aged and elderly patients for more. Many elderly people, once undressed at night to bed, the skin on the body will be itchy, the more itchy the more scratching, the more scratching, until the skin is scratched or pain, in order to slightly stop itching and people sleep. This is because in summer, the human sebaceous glands are very active, the pores are also fully open, with a large amount of sweat discharge, sebaceous secretions are also brought to the surface layer of the skin, so that the skin is nourished. In winter, on the other hand, as the temperature decreases, the activity of such glands decreases and the skin becomes dry due to the lack of nourishing nutrients. Especially the elderly sebaceous glands and sweat glands atrophy, skin blood supply reduced, can not moisten the skin, the result is dry skin, easily stimulated by various external factors and itchy Secondly, the temperature drops in winter, humidity decreases, people lose more skin moisture, so that the elderly skin is more dry Also too diligent to take a hot bath, the use of alkaline soap, or with a large irritating bathing liquid bath, or even vigorously scrubbing the skin with a scrubbing towel, can cause skin moisture loss and itching. This will cause the loss of skin moisture and the reduction of oil. And then wear woolen or chemical fiber underwear in winter, due to the electrostatic effect, can also induce itchy skin. Many people think that winter itchy skin is caused by poor hygiene habits, so it is desperately to drug soap, cleaning solution scrubbing, in fact, this approach is wrong, not only will do the skin surface of the natural oil layer rubbed off, and stimulate the keratin grass-roots level, so that the skin becomes more rough, flakes off more, the skin lost moisture and oil, and make itching more serious. In response to the above, to prevent winter itchy skin can start from the following aspects: 1, due to the lower temperature in winter, sweat flow less, the number of baths should be reduced, once a week for the best. The way to take a shower should be better, it is best not to take a bath, the water temperature should also avoid too high. 2, try not to use alkaline soap when bathing (especially dry skin people), if you must use, should try to choose a neutral, mild quality cream body wash or soap. Immediately after the shower, apply lotion with moisturizing effect, so that the skin is covered with a thin layer of oil to reduce the evaporation of water. 3, avoid wearing wool and rough clothes to reduce the chance of direct stimulation of the skin, in the purchase of clothing to cotton and meticulous texture of clothing is better, while wearing a loose fit. 4, pay attention to indoor humidification, especially those who live on high floors should pay more attention. Drink more water, it is advisable to drink two liters of water a day to replenish moisture to moisturize the skin. 5, moderate intake of high-fat food, less alcohol and other spicy food, eat more vegetables, fruits. Of course, itchy people can use topical anti-itch drugs, oral anti-itch and moistening herbs.