The minimum time required to change medicine for perianal abscess is 7 days. After 7 days, you can change the medication at an interval of 1-2 days, and usually you need to change the medication for 3-4 weeks to recover, and the time for changing the medication should be extended for those with serious conditions. When changing the medication, pay attention to the strength of the change to avoid damaging the newborn tissue. The number of drug changes is 1-2 times a day, if too many drug changes will destroy the new granulation tissue, resulting in slow wound healing. The patient should pay attention to keep the wound clean and hygienic, and take a sitz bath with warm water after stool every day to clean the wound of the remaining stool, in order to reduce the chance of bacterial infection of the wound, and at the same time, the patient should rest more, so that the wound can heal smoothly.