After using potassium permanganate sitz bath generally do not need to wash, the specific medication as prescribed by the doctor. Potassium permanganate commonly used dosage form for tablets and liquid dosage form, can be prepared into different concentrations of potassium permanganate solution for local external use, has a better disinfection, sterilization, commonly used in acute eczema or acute dermatitis, especially for the first two with secondary infection when the wet compress, small ulcers cleaning and so on. Clinically, the drug can be prepared into a potassium permanganate solution for sitz baths, and usually does not need to be washed again after completion. The drug should be contraindicated in people who are allergic to the product, and repeated multiple uses of high concentrations of the product may cause corrosive burns. Specific medication regarding potassium permanganate should be administered under the guidance of a specialist and should not be used without authorization.