How to Identify and Treat Canker Sores
### How to Identify and Treat Canker Sores Canker sores, also known as aphthous ulcers, are small, shallow lesions that develop on the soft tissues in your mouth or at the base of your gums. Unlike cold sores, canker sores don’t occur on the surface of your lips and they aren’t contagious. However, they can … Read more