I have a crevace of some sort on the inside of my lower lip, like a blister had been there and it popped. Only i dont remember popping it. It's a small white little crater looking thing. I heard that if you put peroxide on it, it should go away so I have done that the past two days but it has only gotten bigger (just a little bit) and more sore. At first i thought it was just a dry spot from eating sunflower seeds, but i dont keep them there. Its so annoying i can feel it when I talk and It just throbs on its own. Is there any home remedies i can do to help?