I woke up the other day with my jaw hurting on the inside of my mouth so i go look in the mirror and see a thing the look like a zit pretty much sticking atleast a quarter inch long out from the corner of my jaw and it has a small white spot at the very tip and where i chew skoal im so scared that it can be cancer i have had it for 5 days now and it still looks that same hasn't gotten smaller or bigger my parents think i just may have bit it in my sleep or that its a canker sore but i have never had one for this long and it just don't look like any canker sore that i have had before can anyone please tell me some info because atm i have no job to pay to see a doctor