The weather is getting colder and colder, as the partners who are out and about all day long, have you ever met such a disease; ears and fingers, from time to time a burst of itching and pain? This is frostbite! Frostbite is common in winter, due to the cold climate caused by the local skin recurrent erythema, swelling damage, blisters, ulcers can occur in severe cases, the course of the disease is slow, the climate warms up after self-healing, easy to relapse. Frostbite is the cause of skin in the cold (0 ~ 10 ℃), damp or cold and warm rapid change, local small arterial contraction, long time arterial vascular paralysis and expansion, venous stasis, poor local blood circulation and the onset of the disease. The lack of exercise, sweaty and moist hands and feet, tight shoes and socks and long-term outdoor work at low temperatures and other factors can lead to the occurrence of frostbite. Frostbite is characterized by itchiness, exacerbated by heat, and pain after ulceration; lesions occur on the fingers, backs of the hands, face, ears, toes, edges of the feet, heels, etc., and are often distributed on both sides of the foot. Treatment in addition to drugs, the main thing is still prevention, the following simple teach you a few actions. 1, the palms of both hands gently hold the auricle, first from the front to the back rubbing 49 times, and then from the back to the front rubbing 49 times, so that the skin of the auricle slightly flushed, local slightly baking hot sensation to the degree that the daily morning and evening each 1 time. 2, double palm rubbing Laogong point for 5 minutes; hands clenched fist, open training for 5 minutes; pulling and stretching five fingers for 5 minutes. 3, daily foot soak for 20 minutes, water temperature (about 40 degrees appropriate). Warm tips: 1, strengthen the exercise, promote blood circulation; 2, keep warm to prevent moisture, do not wear tight shoes and socks; 3, on the recurrence of authors, can be in the winter before the amount of sub-erythema of ultraviolet or infrared light irradiation of the local skin, to promote local blood circulation. 4.When accompanied by other related diseases, follow-up treatment should be provided.