Belly buttons can be washed clean by soaking in water, wiping with a cotton swab, and rinsing. It is easy to store dirt inside the belly button, and if you don’t pay attention to hygiene, it may induce infection. 1. You can soak it in water: you can soak the navel area in water or shower gel during bathing to soften the buildup inside and help clean it up. 2. Wipe with a cotton swab: After the belly button is softened, use a clean cotton swab to gently wipe it off, pay attention to the action to gently, avoid excessive force, avoid picking the belly button with fingernails. 3. Rinse: After wiping off the dirt with a cotton swab, rinse it off with running water to avoid infection. Usually pay attention to personal life, diet and hygiene, diligent bathing and changing clothes, if there is a navel infection, you should go to the hospital in time for further treatment.