Hello iplayloudly,

Welcome to the Oral cancer Foundation.

Anything that doesn't heal in two weeks should be further evalulated by a ENT for a biospy. You can go to the dentist as barb suggested and have a brush biospy but sometimes they will read a false negative. If done at a ENT he with either do a punch or cut some out for the biospy. You will receive a pathlogy report detailing what it is.
Believe me you want to catch this at it's earliest stage to have a positive outcome from any treatment needed.
Remember this: It Ain't Cancer Til the Pathlogy
Says it is!!!! From your birthdate it would be rare to have SSC at such a young age.
Please keep us posted as you find out. We love to hear good news.

All my Best, Danny Boy