In winter, sweaty feet radiate heat 25 times faster than dry feet, which is easy to get frostbite. When this happens, the human body will automatically close the circulatory system of superficial skin, resulting in insufficient blood supply to the feet. Insufficient blood supply means that the skin tissue around the foot is necrotic, leading to foot cracking. To this end, people should protect their feet as follows:

1. If your feet are sweaty, dry them and put on dry socks and shoes. People with sweaty feet should change socks at least once a day, and don't sleep in socks at the same time. 3. "Sweaty feet" should wear acrylic socks instead of pure cotton, which can absorb sweat. 4. Don't wear too tight shoes and socks, so as not to interfere with the blood circulation of feet. If possible, you can also apply some antiperspirant oil on your feet.

Add10-15g of alum to boiling water. After alum is dissolved in water, the feet are scalded with proper water temperature for 20 minutes, once every night, for 5- 16 days continuously. Soon, sweaty feet will be fine.

It depends on the patient's specific situation:

Young people with sweaty feet can use the method, and the effect is exact.

If it is in the developmental stage, it is normal for sweat glands to secrete vigorously, so it is not appropriate to use alum many times for a long time. You can grind dried alum (the product of losing crystal water after alum calcination, which is available in pharmacies) into fine powder, and sprinkle a little on your toes after washing, which can have an immediate effect, usually maintaining the effect of 8- 10.

12 hours, and there will be no impact on the body after stopping the drug. This method can also be used to relieve bromhidrosis and body odor during development.