How To: Mouth Sores: Causes & Treatments

Mouth sores are common ailments that affect many people at some point in their lives. These sores can appear on any of the soft tissues of your mouth, including your lips, cheeks, gums, tongue, and floor and roof of your mouth. Minor mouth sores often go away naturally within several days, but they can last up to six weeks. Some simple home remedies might help reduce the pain and possibly expedite the healing process.