The pain of anal fissure is relatively intense, showing paroxysmal knife-like pain, once the bowel movement will stimulate the anal sphincter, the spasm of the sphincter will further aggravate, the pain often lasts for several hours or half a day to relieve, to relieve the pain of anal fissure are medication, improve lifestyle, etc., as follows: 1, medication: you can take oral pain medication, or use the blood circulation, swelling and pain relief of Chinese medicine 2.Improve lifestyle: You must keep your bowels clear, eat more vegetables, fruits and other high-fiber foods, drink more water, have a normal and regular diet, and don’t form dry stools, which can cause severe pain when stimulating the fissure around the anus. It is difficult to grow well. Therefore, it is important for patients with anal fissures to keep their bowels clear and eat more vegetables and fruits if they want to get relief from pain.