Sebaceous cyst dressing changes usually take about 5 times. Sebaceous cysts, also commonly called comedones, are usually found in areas where the sebaceous glands are more active, such as the back or head and face. Sebaceous cysts, which can sometimes be present for years without conscious symptoms, can easily become infected. If a localized infection develops, it will need to be flushed and changed and drained, and surgery is usually performed after the infection is under control. If the wound has healed and the stitches have been removed, then there is no need to change the dressing, if the wound has not healed, it needs to continue to change the dressing. If sebaceous cysts are present, they should not be treated at home by yourself, but need to go to a regular hospital to see a professional doctor for treatment.