The navel can be sterilized and then softened with a wet compress to soften the dirt and remove it, avoiding the inflammation caused by violent cleaning. Normal people will have a lot of black dirt in the navel, affecting the aesthetic, when cleaning improperly may also cause bacterial infection, resulting in periumbilical abscess. The correct way to clean up is: first choose to use alcohol or povidone-iodine to disinfect the navel and the surrounding skin, and then use lubricants to soften and wet the dirt, when the dirt becomes soft, use cotton swabs or tweezers to take it out, and do not clean up violently. Some people in the navel cleaning in an inappropriate way, may cause periumbilical infection, or even the formation of periumbilical abscess. It is recommended to consult a doctor in time, under the guidance of the physician to take amoxicillin, levofloxacin and other antibiotics for anti-infective treatment, for the periumbilical abscess also need incision and drainage, and regular medication changes.