Perianal abscess caused by anal fistula can be treated with general treatment, drug treatment and surgery. 1. General treatment: usually should eat a light diet, avoid spicy and stimulating food, keep the bowel movement. Some patients can be treated with 1:5000 potassium permanganate solution sitz bath. 2. Drug treatment: mainly apply antibiotics for anti-infection treatment. Commonly used drugs include ceftazidime, ceftriaxone, ciprofloxacin and other drugs. The use of specific drugs should be under the guidance of the doctor. 3. Surgery: it is the main method of treating perianal abscess. Commonly used surgical methods are perianal abscess incision and drainage, perianal abscess radical surgery and so on. Specifically according to the condition, under the guidance of professional doctors to choose the surgical treatment program. Once the perianal abscess is found, it is recommended to consult a doctor in time, make a clear diagnosis, and actively cooperate with the treatment to avoid aggravation of the condition.