Healthy navel can use warm water to clean, navel there are wounds or diseases can use hydrogen peroxide to clean. For healthy people, you can use warm water to clean the navel, clean the navel area dirt. In the bath, you can first use warm water into the umbilicus, let the umbilicus soak 4-5 minutes after using a cotton swab or cotton to suck off the warm water. If the patient has an infected umbilicus, this requires soaking the umbilicus in hydrogen peroxide or povidone-iodine, then drying it with a sterile cotton swab and applying povidone-iodine. This method is effective in cleaning up the dirt produced at the navel as well as the necrotic cells at the navel due to the infection. The navel should be treated when it becomes uncomfortable to avoid causing other symptoms that could delay the condition.