Hey guys, so i have a canker sore in my mouth on bottom lip. But its unlike any canker sore ive had i dont even.know if its a canker sore.. To me its more of a pimple on the inside of my lip.. I just dont know what it is.. Ill leave it alone for a couple days then it gets a tad bigger and sensitive so id bite it.. Im just confused and theres only 1. You cant really see it in my picture.. Im just a worry wort.