Potassium permanganate solution can be used to wash the glans, but it needs to be diluted for cleaning. If the concentration of the solution is too high, it may produce chemical burns and is mainly used for various kinds of glansitis and to maintain local cleanliness. Potassium permanganate solution is stimulating and can kill pathogenic bacteria present on the surface after a long soaking of the glans, so it can be used for the treatment of prepuce or glansitis. You can also use some other topical medications with the treatment, such as topical anti-infection ointment or oral anti-infection medications to play a synergistic role. Potassium permanganate solution has a killing effect on pathogenic bacteria common to glans and foreskin local infections, and can play a role in maintaining local cleanliness and inhibiting the growth and reproduction of local pathogenic bacteria, so it can be used for local external washing of glans. Each time the external washing needs to be cleaned with potassium permanganate solution, soak 1-2 minutes, after the cleaning is completed, you need to use water for local cleaning.