or high in salt can also exacerbate canker sore symptoms. Grapes, blueberries, and pineapple are a few examples of foods to ...

Canker sores, or aphthous ulcers ... These sores can be triggered by something as simple as sipping a hot drink, eating crunchy foods, or accidentally biting the roof of your mouth.

Dr. Yang also suggests chewing on the other side of your mouth free of canker sores if possible. Tip: Eating soup (as long as ...