Old anal fissure is divided into conservative treatment and surgical treatment, as follows: 1. Conservative treatment: first of all, we need to use drugs based on improving lifestyle, such as taining cream and anal taining cream. There is anesthetic component lidocaine in tylenol cream, so it is more effective in relieving pain and bleeding; 2. Surgical treatment: If the pain and bleeding symptoms do not improve significantly after 1-2 weeks of conservative treatment, surgical treatment is needed. Surgical treatment should be done under lumbar anesthesia, which is a condition where the lower half of the body does not feel anything and does not have any pain. During surgery, the old type of anal fissure, which is also like bark-like tissue, is completely removed and cleaned to form a fresh wound, and after surgery, flesh-growing medicine is used to make the wound grow up and grow into fresh skin as soon as possible. Whether the old type of anal fissure will recur after surgery, we must emphasize the issue of lifestyle. You cannot eat hot pot and sing every day after surgery because you have already had surgery, or eat a very uncomfortable diet every day, or even play with your cell phone for 20-30 minutes when you go to the toilet. The root cause is lifestyle change, which is the most important way to treat old anal fissures.