The best time to take treatment for an anal fistula is when there is pus, bleeding and running water in the anus. This is the best time to go to the hospital for examination and treatment. If you have an anal fistula, the fistula will close automatically for a period of time and the patient does not have any symptoms, you can continue to observe the situation at home. If the above situation occurs, it is the best time to take surgery. The specific medication should be combined with clinical and guided by the doctor’s interview.