Answer:
call a doctor so they rip it out than put ice on it and than scream
Explanation:
are you sure it is a blister but if it is 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. They usually last a week or two.
