1; Strengthen exercise, develop a good habit of washing your face with cold water all year round, promote blood circulation in capillaries, and rub your ears with your hands for a long time, which has achieved the goal. 2. Keep warm; gloves, hats, scarves, earmuffs, cotton shoes, insoles, etc. are all inseparable. 3. Food supplements; eat some; positive foods; leeks, onions, ginger, garlic, wine, peppers, oysters, eggs, fish, mutton, dog meat, beef, chicken, carrots, soy products, fresh fruits, vegetables, and vegetable roots , dairy products, animal liver, etc.

Please adopt