There's a bump in my mouth. It's white in the middle and red around the edges. What do I do?

Its been there for 2-3 days, and doesnt really hurt unless I touch my teeth with it or:It's been there for 2-3 days, and doesn't really hurt unless I

It's been there for 2-3 days, and doesn't really hurt unless I touch my teeth with it

or:It's been there for 2-3 days, and doesn't really hurt unless I touch my teeth with it


or:I had something like that about a week ago it took alot to get rid of and it hurts its infected and it swelled i used listerine for a about three days and it went away gargle with it and rinse and swish for about 1 minute you can do this two times a day listerine kills germs and that is how it got infected with to begin with but it should go away after two or three days.

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