Potassium permanganate solution can be cleaned by sitz bath or topical external washing, can treat local inflammatory infections, but should not be used for a long time. Potassium permanganate solution can be used to treat inflammatory infections such as anal fistula and perianal diseases, vaginitis, cervical erosion, armpit and foot odor. Anal fistulas as well as perianal disorders can be prevented and anti-inflammatory by localized sitz baths and washing. Vaginitis and cervical erosion can be treated with sitz baths using a 1:5000 solution of potassium permanganate. Potassium permanganate is toxic and its concentrated solution can be corrosive to the skin and irritating to the tissues. It is not recommended for long-term use or for use alone, and care needs to be taken to avoid splashing in the eyes or inhalation into the respiratory tract when using it. If potassium permanganate solution is accidentally splashed into the eyes or inhaled into the respiratory tract while using it, you need to go to the hospital for consultation and prompt treatment. Cleaning with potassium permanganate solution should be done under medical supervision.