last week (Thursday I think) i caught my gum while eating a cold cereal bar.  I noticed a couple of days later what looked like an ulcer had formed there.  It is still there and doesnt seem to be healing at all.  I am unsure whether to keep treating it as an ulcer or whether it is a cut that has got infected as it started to bleed earlier
Thanks for your query, I have gone through your query. The ulcers in the mouth could be because of allergic dermatitis or authors dermatitis. The other possible cause could be secondary to trauma like cut injury from food particles. It can also be from the herpes virus infection. If it is a traumatic ulcer or herpetic ulcer, you can take topical anesthetic and analgesics like Anabel gel. Apply 3-4 times daily before food. If it is a allergic dermatitis or authors ulcer you can take topical anesthetic and analgesics like Anabel gel. Apply 3-4 times daily before food and topical steroid like triamcinolone acetone 0.1% 4-5times daily after food. Do saline gargling. If the lesion does not heal in 5-7 days then consult an oral physician and get it examined. I hope my answer will help you, take care.