I have a blister on my gum in the back of my back tooth what is it and how did it get there?
It might be an infection it the tooth. Or a canker sore. Go see a dentist if you aren't sure. Try listerine. It kills a lot of bacteria causing stuff in your mouth.
its probably an absess from an infected tooth.
Could be a burn from hot food or liquid. Could be from eating salt and vinegar chips.Could be an abscess, especially if you have a tooth ache
Its a cold sore. It will go away soon
i had that last month... go to your docter an they'll qive youu meds.. it'll feel better riqht after! its just an infection.. probably caused by a tooth coming in..