Frostbite mostly occurs in severe cold seasons, usually when the temperature is below 5°C, and it will heal itself in spring when the climate warms up, but it is easy to recur after winter, which is very distressing. In fact, the occurrence of frostbite, especially the frostbite of the feet, mostly occurs in late autumn and early winter when the weather is not too cold, which is called the "first frostbite peak period" throughout the year. Yang Jing, deputy chief physician of the Dermatology Department of the First People's Hospital of Xiangyang City, Hubei Province, pointed out that the best time to prevent frostbite is late autumn and early winter.
At present, the pathogenesis of frostbite is not very clear, it may be related to skin blood vessel hypersensitivity to cold, autonomic nerve dysfunction and genetic factors. People who are often exposed to cold water are susceptible to this disease. The key to preventing chilblains is cold-resistant exercise. First of all, from the end of autumn to the beginning of winter, gradually soak the parts that often suffer from frostbite in the past, such as hands and feet, with cold water. At the beginning, you can try to soak for half an hour every day, and then gradually increase to soak for one hour, and apply petroleum jelly or other oils on the parts that are prone to freezing to protect the skin. Secondly, pay attention to local warmth, such as masks, gloves, windproof earmuffs, scarves, etc. should be used when going out in cold weather. Shoes should not be too tight. In addition, warming can also be carried out from food. Appropriately eat some warm foods such as beef and mutton to enhance the body's cold resistance. Usually, you should also massage your hands, feet, and auricles frequently to promote blood circulation in these organs. Those who have conditions can also be supplemented with physical therapy, such as using ultraviolet rays to irradiate the parts that have suffered from frostbite before winter, so as to play a preventive role.
