Does anybody else have problems with canker sores? In the past, I've had them only occasionally, but lately I seem to be having a swarm of them--to go along with tooth pain. I was wondering whether acid reflux might be a factor in this. Also whether some of the medications we take--not just the main ingredient, but also the "filler" used by various manufacturers--might contribute. This may not sound like a big deal, but in the last couple of days, I think my canker sores have caused me more pain than my aching teeth! --Laura R.M.