The anal anal analgesic called indomethacin suppositories, also known as anti-inflammatory pain suppositories, belongs to the non-steroidal antipyretic and anti-inflammatory drugs, and aspirin, fenbendazole, celecoxib are a large class, mainly to relieve pain, but also to reduce fever. Transanal administration is not too convenient, so in the clinical work is mainly oral administration or intramuscular injection to relieve pain. It is often used for pain relief of abdominal incision or mild pain in the abdomen after surgery, and can be given orally as fenbendazole or celecoxib. If the pain is still more obvious, intramuscular injection of tramadol, or even pethidine, morphine, etc. can be used.