Hi gumby,With Ides busy with her family for awhile I am going to try to pop into the forum when I can or if you see something that needs the attention of a Moderator - shoot me an email Canker sores, for me, are usually from my chemotherapy.
If your past pattern has indicated you are probably in the early stages of a flare up, I agree with the others - at least give your Dr. a jingle.
Thinking of you,
Kitt