I am out of Radiation/Chemo 18 months and still have a very similar problem with the left side of my tongue. I think the radiation scatter from an implanted tooth could have over dosed me somewhat. I also irritate it with my teeth or by eating something abraisive at times. I am able to eat most anything now even though the overall healing of my tongue has been slow. However it seems this place on my tongue doesn't want to completely heal. I am hopeful another year will see it resolved. You should certainly see more improvement with time!

Weldon

Base of Tongue SCC, Stage IV, surgery, Rad X 38, Cisplatin & 5FU X 3