Potassium permanganate wash after the glans does not itch, belong to the phenomenon of the improvement of the condition, generally do not need special intervention. Potassium permanganate is a disinfectant and antiseptic drug, mainly used for patients with acute dermatitis, acute eczema and small ulcers. When patients have itchy glans, it may be due to bacterial infection, etc. When patients do not have itchy glans after cleaning with potassium permanganate, it is generally an improvement phenomenon, and usually no special intervention is needed. When using potassium permanganate, patients should pay attention to the prohibition of oral intake, and should pay attention to the concentration of the drug, to avoid the concentration is too high, corrosive burning and other discomforts. When using potassium permanganate to clean the glans, patients should be correctly used under the guidance of a doctor to avoid blind use of drugs, resulting in adverse consequences.