Posted 8/23/2020 19:36 (#8452729 - in reply to #8450511) Subject: RE: Canker Sores
West Central Wisconsin
I used to get them as a teenager but can't remember the last one I had. I've no idea on how to prevent but when I got one I'd wet my finger and put it in a box of baking soda then hold it on the canker. I can't remember how long it took to go away.