A ruptured perianal abscess should be treated by a doctor as early as possible, and during treatment, the local area can be cleaned with potassium permanganate. Drugs should be applied under the guidance of a doctor. Perianal abscess is a common infectious lesion in anus and intestines, due to a variety of reasons such as bacteria, viruses and other pathogenic microorganisms invade the parianal tissues, and eventually form abscess lesions. Part of the abscess lesion is superficial, with the growing size of the abscess, the lesion site tension rises, rupture and pus flow may occur. In this case, early medical attention should be sought. On the one hand, it is necessary to dilate the ruptured area, remove the pus cavity and pus, pay attention to wound cleaning and dressing, and ensure that the abscess heals and recovers layer by layer from the inside out. On the other hand, it is necessary to choose sensitive antibiotic drugs under the guidance of the doctor to fight inflammation, prevent the infection from continuing to develop, and ensure the smooth recovery of the abscess. In the recovery process, in order to keep the wound clean and hygienic, you can mix diluted potassium permanganate solution according to the concentration of 1:5000, 2-3 times a day for wound cleaning, with anti-inflammatory, anti-itching effect, which can help the wound healing recovery.