That's scar tissue from the piercing. A keloid (the lump) can appear because of irritation. Try not to play with it too much in your mouth, I know it's tricky but that's the only way to get rid of it. Keep rinsing your mouth out with a form of saline solution.

No, your piercing is most likely not infected, just irritated. A navel piercing can take up to 12 months to heal, and it is normal to have a small bit of swelling and discharge. Your body is just getting used to the jewellery. If it was infected, you would have a lot of swelling, and … Read more