After anal fistula surgery with hydrogen peroxide cleaning for a few days, usually does not appear inflammation phenomenon, if the patient is not the right time to use the medicine, may appear inflammation phenomenon. The use of hydrogen peroxide cleaning after anal fistula surgery can prevent anaerobic bacterial infection, for the pain has a certain role in relieving, generally after the use of the phenomenon will not appear inflammation. If the patient in the use of hydrogen peroxide cleaning, the dosage is not appropriate or the use of improper, may lead to bacterial infection, the phenomenon of inflammation. Hydrogen peroxide can prevent anaerobic bacterial infection, but can not prevent the reduction of bacterial infection, so the anal fistula patients in the postoperative period only use hydrogen peroxide cleaning, there is still a chance of inflammation. It is not recommended to use it blindly on your own, you need to be guided by a professional doctor to use the medicine. Anal fistula patients should pay attention to appropriate rest after surgery, to maintain local cleanliness. Diet to light, avoid eating too spicy and stimulating food. After anal fistula surgery to change the medicine, by professional health care personnel to give disposal, follow the doctor’s instructions.