Potassium permanganate is used to disinfect and sterilize skin wounds, ulcers, thrush, abscesses, inflammation of the oral cavity, and dental caries in a certain ratio, using its oxidizing properties to kill bacteria. Potassium permanganate is an oxidizing agent with anti-itching, anti-inflammatory and anti-infection effects, which can effectively eliminate armpit odor and foot odor, and treat tinea pedis by dipping.