In the cold winter, many people will have auricle frostbite, and the auricle skin will be red, swollen, itchy and fever. They always want to rub it with their hands, and gradually they have a tingling sensation. Sometimes their skin will shine and blisters will appear. Auricular frostbite is serious, skin is broken, ulcer, yellow water flows out of auricle, and the surface is scabbed. Due to long-term ischemia and hypoxia, dry necrosis of auricle can occur, and it is not uncommon to "freeze off the ear". Cause lifelong ear defects and deformities. The two ears protrude from both sides of the head, with thin skin and less subcutaneous tissue, and are closely connected with auricle cartilage. Due to the lack of subcutaneous fat protection and superficial blood vessels of auricle, when encountering cold stimulation, vascular contraction is prone to ischemia and hypoxia and auricle frostbite. After the auricle is frostbitten, gently massaging the auricle by hand can promote local blood circulation. No matter how severe the frostbite is, never go to a hot room for heating or suddenly use a hot water bottle or hot towel to avoid causing vasospasm and local necrosis. Do not rub hard, otherwise it will easily cause local blood circulation disorder, auricle pseudocyst and auricle periostitis. In the early stage of auricle frostbite, radish can be cut into thick slices, roasted with fire, and rubbed on the frostbitten and swollen part of the ear, which has the functions of dispersing stagnation, promoting blood circulation and reducing swelling. Be careful not to scratch your skin. If frostbite is serious, you can apply frostbite cream locally and take antibiotics orally. If the auricle has festered or even cartilage is exposed, you should go to the hospital for surgery immediately. In order to prevent the occurrence of auricle frostbite, we should pay attention to cold and warmth.