Hi, I developed mouth ulcers 3 months back and they have been recurring ever since. Sometimes they reduce and go away and suddenly a few days later multiple ulcers develop again. They are painful and are spread all over the mouth. I consulted a general physician and was recommended vitamin B tablets, but those have been ineffective. I was also prescribed Omnacortil-20mg, the ulcers reduced after taking that but developed again as soon as the course finished. Could this be a symptom of auto immune disorder? Kindly advise.