Mucocele are a painless salivary gland cyst found on the lower lip, roof of mouth, or gums. These cysts are caused by damage to the lip or cheek and a blockage of saliva forms in the duct. Habits such as biting the lips or cheeks and piercings in the lips or cheeks can cause mucocele to form.
Treatment of Mucocele may simply be to let it heal on its own. Some require surgery to remove the salivary gland or remove the blockage. Other treatments include cryotherapy to freeze the cyst, or injecting cortisone to reduce inflammation.