Some people's hands and feet desquamate in winter, and they begin to itch, blister and desquamate. The desquamate area increases year by year, and extends to the deep level, finally revealing fresh and tender flesh color. The desquamation of hands and feet caused by nutritional deficiency is generally related to the lack of vitamin A. Vitamin A is a fat-soluble vitamin, which has a protective effect on the surface of the skin. If it is lacking, it will cause skin dryness and peeling. In order to prevent hand desquamation, hands should be kept clean, with as little water as possible, even if it is best to wash hands with hot water; Eat more foods rich in vitamin A, such as animal liver, egg yolk, milk, cheese, fish, shellfish, carrots and so on. Carotene in some foods can be converted into vitamin A in the body, so you might as well eat more at ordinary times. It should be noted that hand cream can be applied after washing hands every day, or vitamin E pills can be applied to the hands, and vitamin C injection can be applied to the affected area, twice a day, for 3 days as a course of treatment. It has a good effect on the recovery of skin lesions. Methods: Wash your hands first, then pour vitamin C injection into people's palms when it is slightly dry, and then wipe the liquid evenly with both hands, and then wash it off when it turns white after it is dry. 2 ml twice a day.