How To Treat Canker Sores

Canker sores are small, shallow ulcers that can develop at the base of the gums or on the cheeks. Also called aphthous ulcers, they are not to be confused with cold sores, as they never develop on the lips and are not contagious. However, this does not mean they can't be painful. Canker sores can also make simple tasks like talking and eating, difficult. A variety of factors can cause canker sores to develop, from eating spicy or acidic food to vitamin deficiencies, stress, hormones, autoimmune disorders, and injury to the mouth.