Canker Sores. No one knows what causes these small, painful blisters inside your mouth. Triggers include hypersensitivity, infection, hormones, stress, and not getting enough of some vitamins. Also called aphthous ulcers, canker sores can show up on the tongue, cheek, even your gums.
Nonetheless, mouth sores, irritations and lesions can be painful, unsightly. Canker sores are small white swellings or sores surrounded by an area of redness.
Most people have experienced small white bumps on lips. If you have also. White bumps on your lips can be either painful or painless. Sometimes these .