How do mouth ulcers feel?

Mouth ulcers can cause a variety of uncomfortable sensations, such as:

* A stinging or burning sensation

* Pain when eating, drinking, or speaking

* A tingling or numbing sensation

* Feeling hot and swollen

* Tenderness and pressure to the touch

* Redness or white or grey lesions

* Difficulty swallowing

In more severe cases, mouth ulcers can cause:

* Fever

* Headaches

* Feeling irritable or tired

* Loss of appetite