As we all know, alum has a certain therapeutic effect on beriberi, because alum has anti-inflammatory and bactericidal effects. Soaking feet with it can kill a variety of germs on the feet, thus inhibiting the occurrence of beriberi.

Note: beriberi is a disease that is easy to recur. Although the symptoms will disappear after soaking feet with alum, they can't stop. It takes a period of soaking to completely remove athlete's foot.

2, cure foot odor

The reason why everyone's feet stink is mainly caused by sweating. After soaking feet with alum, it will have a astringent effect on human skin, which can effectively reduce sweat secretion and keep feet dry, thus reducing the occurrence of foot odor.

But it should be noted that alum is also harmful to the skin and cannot be used for a long time. If it is used for foot bathing, it must be stopped for about 10 days to avoid damage to the skin.

3. Hazard: Alum, the main component of which is potassium aluminum sulfate dodecahydrate, so not everyone can soak their feet in this way, especially those with allergic skin, and be more cautious about the elderly and children with relatively weak constitution.