Potassium permanganate topical tablets do not need to be washed after use, but it is recommended that when using potassium permanganate topical tablets, pay attention to the dilution concentration, you can put potassium permanganate topical tablets into warm boiling water and soak them, a concentration of 1:5000 is recommended, at this concentration potassium permanganate water is light red, it is not irritating to the skin and will not cause discomfort to the patient. If the dilution is not enough and the concentration is too high, the skin may be burned and cause discomfort to the patient. It is recommended that when using potassium permanganate topical tablets, they should be examined in a regular hospital and used only under the guidance of a doctor, and it is not recommended to use them blindly on your own. If the effect is not good after use, the patient should go to the hospital again for relevant examination and laboratory tests, and if necessary, adjust the medication and corresponding treatment according to the doctor’s plan.