While amongst my diagnostic souvenirs I been labelled with a 'Short Barrett's Tab, this can happen with Crohn's and UC. it is really form of GERD which causes hydrochloric acid to reflux into the distal oesophagus. Invariably, there is hiatal hernia involved. It is a form of peptic ulcer.
While, for many years a was prescribed daily 40mg pantopazole (Somac) for this problem .
I now only take a dose if a have reflux, which to be honest is rare.Handling matters this way negated the need to do B12 iMI's 2/12.
Of late I have had the pleasure of mouth ulcers forming at the gum line of my lower front teeth. Initially I put this down to an bronchodilator which I use daily. I always made sure that I rinsed my mouth thoroughly afterwards, but still the ulcers persist. Nothing as serious as other have described, but niggling nevertheless.
I have found Biotene mouth wash and gel useful. At night, I use Kenalog paste which works to seal the area. This paste is a form of corticosteroid which works well. It is known by other brand names around world-Norvartis,Tricort-Triderm.
I will try and retrieve a link which comprehensively covers a whole range of possible causation of oral ulceration. Oddly enough Methotrexate is one of the suspects.
Cheers,
Merv
https://www.sciencedirect.com/science/article/pii/S1882761613000811