Potassium permanganate sitz baths are usually soaked for about 10-15 minutes. Potassium permanganate is a topical disinfectant. Potassium permanganate solution is commonly used clinically for rinsing or sitz baths to treat inflammation of the anus, perineum and other parts of the body. Soaking in potassium permanganate usually takes about 10-15 minutes to achieve sterilization. When preparing potassium permanganate solution, it is recommended to keep the water temperature around 35℃-40℃ to avoid scalding the skin. In addition, it is important to know the concentration of the drug in the potassium permanganate solution. Generally 1 gram of potassium permanganate to 5000 milliliters of water, while stirring well. It should be noted that potassium permanganate solution immersion can not be blindly abused, and should be used in accordance with medical advice. The prepared aqueous solution can only be kept for two hours, and when the solution turns color, it loses its disinfecting effect and is recommended to be used in time.