Potassium permanganate lotion is a gynecological topical drug commonly used. Potassium permanganate powder, also called PP powder, is mainly used in clinical practice to treat gynecological inflammation, as well as gynecological wounds of the vulva, and the treatment of hemorrhoids. The main pharmacological effects of potassium permanganate are disinfection, antipruritic, pain relief, infection prevention, and keeping the wound dry. As potassium permanganate is a chemical preparation, the main thing to note in the process of using the medicine is the concentration of the lotion, which is generally not too high, otherwise the patient may experience a burning sensation. In addition, in the process of use, attention should be paid to keep the perineal wound clean and dry, avoiding too long and excessive use.