As a persistent disease that plagues 200 million people in autumn and winter, it is not only difficult to cure, but also recurs from time to time, bringing great inconvenience to people’s lives. In fact, once frostbite occurs, the key to treatment is to get rid of the wet and cold environment and keep the frostbite area warm and dry, otherwise the treatment is difficult to work, and even if it gets better for a while, it is easy to relapse. Frostbite will also improve after the environment is improved. The following three methods can be used for specific treatment 1. Local warmth Pay attention to local warmth and dryness. At the same time, pay attention to strengthening exercise and nutrition, enhancing physical fitness, promoting blood circulation, and treating anemia and other wasting diseases. 2, the external application of drugs skin lesions are not broken, can be used externally xiheto polysulfate mucopolysaccharide cream, 10% camphor spirit, 10% camphor ointment, frostbite cream or honey lard ointment (70% honey and 30% lard). Apply the medicine after soaking in warm water and rubbing repeatedly for better results. For those who have broken down, first wash the wound with saline, then use healing human collagen dressing or 5% boric acid, or 10% fish lithin ointment, or 0.5% neomycin ointment, or 20% comfrey ointment, and finally wrap with sterile gauze. 3.Internal medication Systemic medication must be carried out under the guidance of a doctor, and some vasodilators can be taken orally, such as nifedipine. Systemic medication has certain contraindications, such as hypotension and coronary artery lesion patients can not be taken. Oral warming and meridian-clearing herbs can also be taken. The prognosis of frostbite is generally good, but to reduce the recurrence rate of frostbite, it is necessary to do the “three preventions”, i.e. prevention of cold, moisture and static. 4. Cold prevention Wear cold clothes, hats and gloves in the field or outdoors, and install heating facilities when it is cold indoors. Night sedentary workers should pay more attention to the cold to keep warm, use warm water in winter, it is appropriate to wear soft leather gloves. Generally speaking, cotton gloves are more warm than the five fingers separate gloves. Work or labor can wear work gloves to prevent frostbite is advisable to apply a small amount of petroleum jelly can reduce skin heat dissipation, but also have a thermal insulation effect. Shoes and socks, underwear size, elasticity should be appropriate, not too tight too small. 5, anti-humidity often keep clothes, shoes and socks dry, damp and timely replacement, hands and feet sweaty people in winter hands and feet are always cold, poor peripheral circulation, more attention should be paid to timely adjustment and replacement. After working in the cool water should be dried hands in time to keep the skin dry. 6, anti-static Avoid long-term immobility of limbs, sitting for a long time, standing for a long time to appropriate activities to promote blood circulation and reduce the occurrence of frostbite. In fact, in addition to frostbite, which occurs mainly on the hands and feet and both ears, there are also a number of skin diseases that occur more frequently in winter due to the cold. For example, cold erythema multiforme also often occurs in the hands, feet, ears and other areas with weak vascular end-regulation, with female patients being the majority. Fully developed cold erythema multiforme lesions also show target ring-like damage. Young women who seek to “freeze beautifully” often like to wear tight-fitting jeans or leather pants in winter. It is important to note that while this kind of dressing reflects the body’s curves, it can also affect blood circulation and make it easy to develop cold seborrhea on the outside of the thighs.