For washing the vulva with potassium permanganate, a concentration of 1:5000 is recommended, that is, 5000 milliliters of water to 1 gram of potassium permanganate, at this concentration the diluted potassium permanganate water will appear to be a light pink color, which is not irritating to the skin and will not cause discomfort. If the dilution is not enough and the concentration is too high, it may burn the skin and cause discomfort. It is recommended that when using potassium permanganate, go to a regular hospital for examination and use it under the guidance of a doctor. It is not recommended to use it blindly by oneself, because some diseases will be aggravated after using potassium permanganate to wash the vulva, such as mycosis vaginalis. In addition, if the effect is not good after use, you should go to the hospital again for relevant examination and laboratory tests, and if necessary, you need to adjust the medication and treatment, and use the medication according to the doctor’s prescription.