Patients with anal fissure should be washed with running water with medical cleaner after defecation, and the bottom of the bottle should be sealed to prevent microbial invasion. Because of the lack of elasticity, fake goods can't continuously come out of the water, so they have to open holes in the bottom of the bottle, but this will lead to the entry of microorganisms and cause hidden dangers. After washing, wipe it with a 36 iodophor towel specially used for anal sterilization to eliminate invisible bacteria. Ordinary iodophor wet wipes are too small to penetrate anal canal, and the material is too hard, which is easy to scratch chrysanthemums. They are only suitable for the body surface, not the anus. In addition to washing, it is not allowed to use anal air cushion to suspend the affected area when sitting. It is necessary to prepare a set of electric anal physiotherapy bag. Electric anal physiotherapy packages are generally available in large hospitals. Pay attention to choosing those that meet medical standards, and never buy non-medical ones that do not meet medical standards or even endanger health.