During the cold winter months, many people often develop frostbite, which occurs on weak areas of the body, such as the ears and hands and feet. Frostbite is a common winter disease that occurs during the cold season when the skin is limited, bruised, and erythematous at the end of the body. Frostbite occurs easily in cold, humid conditions, when blood circulation to the extremities of the body is poor, when hands and feet are sweaty, and when there is a lack of exercise. Frostbite not only affects the beauty of the hands, but also causes itching and pain, and if it recurs and breaks down, it will leave deep scars. It is important to keep your hands warm, strengthen your body and improve your ability to protect yourself from the cold to prevent frostbite from occurring. Keeping dry and applying oil to cold-prone areas can also protect the local skin. In addition, you can eat more caloric foods such as lamb and chocolate in winter, and eat chili peppers and other sweat, all of which can promote blood circulation to the extremities. When suffering from frostbite, the first thing you should do is to keep warm. If the frostbite is only hard and unbroken, you can scrub it with chili tincture or hot alcohol. If it has broken down, you can use erythromycin ointment or lard and honey ointment to rub and bandage it to promote early healing. You can also dry and heat cotton gloves and put your hands in them to speed up the blood circulation in your hands. The prevention of frostbite can be started from the following aspects: 1. When the weather suddenly becomes cold in winter, frostbite is most likely to occur at this time, so special attention should be paid to keeping the body warm, especially in the areas where frostbite occurs, as cold is the main cause of frostbite. At the same time, the relative humidity in the environment should be reduced as much as possible to keep the local environment dry. 2. Insist on physical exercise to improve blood circulation around the body and to improve cold resistance and the immune function of the entire body. Frostbite is a local disease, but it is inseparable from the whole body. So physical exercise is the best way to prevent frostbite. 3, insist on washing hands and face with cold water, or taking cold baths, winter swimming, etc., which can significantly accelerate blood circulation and improve the ability to resist cold. 4, shoes and socks should not be too tight Poor blood circulation at the distal end of the limbs can induce or produce frostbite. Tight shoes and socks will make the blood circulation in the feet worse, so it is not advisable to wear tight shoes and socks to prevent frostbite. Wear insoles that are wide and comfortable and have a strong ability to permeate sweat to keep them dry and avoid local pressure. 5.If you have been in a cold environment for too long, such as riding a bicycle, immediately after returning home, soak the frozen and locally pressurized parts with warm water, or use rubbing and massage to strengthen local friction and movement to quickly improve local blood circulation. 6. Actively treat related diseases: autonomic dysfunction, poor blood circulation in the distal extremities, excessive sweating in the hands and feet, malnutrition, anemia, etc., can cause or trigger frostbite. People with a history of frostbite can treat their related diseases or take some drugs that can change the distal end circulation earlier each year before winter. 7. For superficial frostbite, self-push-up of the frostbite area at the beginning can have the effect of activating the blood and dispelling blood stasis and warming the Yang to disperse cold. The method is: 1.Gently palm rubbing or finger rubbing on the affected area for 1 to 2 minutes. 2.Rub the affected area for 1 to 2 minutes, with a feeling of heat is good. 3.Take the affected area as the center and push it up and down with your fingers about 10 times. 4.Knead the frostbite part at the auricle with fast frequency, one pinch and one release to promote blood circulation. 5.Pull and stretch the frostbitten parts of the hands and feet, and help to perform flexion and extension activities.