Generally speaking, 0.2 grams of potassium permanganate needs to be mixed with 1,000 milliliters of water for sitz baths, and it is recommended that the medication be used in accordance with the doctor’s instructions. Potassium permanganate is mostly used as a topical tablet, which is a disinfectant and antiseptic drug. Potassium permanganate is commonly used in clinical practice to treat acute dermatitis or to clean small ulcers. During the use of potassium permanganate sitz bath, the solution should be prepared according to 1:5000, so the person who uses 0.2 grams of potassium permanganate sitz bath needs to mix 1000 ml of water in order to dilute the drug and prevent the drug concentration from damaging the mucous membrane of the skin. Potassium permanganate is a topical drug, which is not to be taken orally by the crowd, and is also not to be used by those who are allergic to the drug. If the crowd high concentration, repeated multiple use, it can cause corrosive burns, and the preparation of the solution should not be directly contacted with the hands, so as not to be corroded or stained, and should be taken seriously. If patients have local burning sensation, redness and swelling after using the medicine, they should stop using the medicine and rinse with running water and seek medical treatment. It is recommended to apply potassium permanganate sitz bath under doctor’s guidance, and not to use the medicine by oneself to prevent accidents.