If the anal opening is rotten and there is significant pain, the first step should be thorough disinfection and debridement, preferably under local anesthesia, because the patient is pain-sensitive and hemorrhoids located below the dentate line can easily develop secondary infections. The surgical operation can be performed under epidural anesthesia, and if it is caused by a combined hemorrhoid, the lesion should be removed, and intravenous anti-infection treatment is required after the operation. During the usual or recovery period, pay attention to the hygiene around the anus, insist on applying potassium permanganate dilution for local cleaning or sitz bath, and apply topical hemorrhoid cream and erythromycin ointment to relieve the condition to some extent. During the recovery period, you can appropriately supplement high-protein, vitamin-rich food to speed up the healing of the wound, and appropriately exercise the contraction of the anal levator muscle to relieve the local swelling symptoms.