Complication of lip bite situation, anyone with similar problem...?

I bit my lip (I have slightly oversized canine teeth) and I now have a protruding white scar/blister (not sure exactly what to call it) that isn't going away. I think it may have been complicated because after the initial bite it got swollen and it, consequently got bitten a couple more times (ouch!!), and I suspect it was infected. So now that I have this white thing I am wondering if it will ever go away, or I will need surgery to get rid of it. So, has anyone had a similar "thing" in their mouth, and what happened eventually?