I'm worried (again). My husband, at 9 months post radiation, has a sore on the back of his tongue that has been there for over a month. He saw the ENT a couple of weeks ago and he said it was a canker sore. But should a canker sore take this long to heal? I've done a search on this forum and it seems like a non-healing canker sore was the first symptom for a few people that later found it to be cancer. Has anybody else had such persistent mouth sores this long after radiation? He doesn't see the ENT again until the end of January...do we wait that long?

Thanks,
Anita