Thank you Angela. According to my pharmacist a lot of whitening toothpastes are also causing mouth problems in many. So hard to find out what the culprit is ...

No, but I don't take it that often, as it doesn't usually work on my weather migraines.

I have taken this many yrs no mouth sores at all never have that problem at all

Thank you Pamela. I have been referred to a PAthologist for this coming Wednesday for further investigation as this condition (Cankor sore (ulcer) in the same area is reoccurring.)
A Pharmacist advised that Maxalt can also be prescribed in pill rather than wafer form if something in the wafer form is an irritant.

Same here. Maxalt plus Excedrin have me mouth sores