Anal fistula changing gauze is too painful, you can choose to divert attention, use painkillers before or during the change. 1. Diversion: the purpose of using gauze for anal fistula is to drain, for deeper wounds or larger trauma, more purulent secretions, gauze change will be painful, but the pain with the trauma inflammatory response improves, the pain level will be slowly reduced, so for the patients who have a better tolerance, you can choose to divert your attention, which will help to alleviate the pain. 2. For patients who are more sensitive to pain, in order to make them relax and cooperate with the change of medication, anal fistula change gauze before or on the way with painkillers, such as diclofenac sodium suppository, lidocaine gel, etc., under the guidance of the doctor. Anal fistula for gauze pain time generally does not last long, in the state of pain tolerance, usually do not do any treatment, observation can be, on the pain of sensitive patients to consider the use of medication, specific compliance with the doctor’s instructions.