article_snippet.sent: I have been suffering from mouth ulcers for the past five months and feel I'm living on Bonjela and mouthwash.
article_snippet.sent: A: Mouth ulcers may seem like a minor ailment but can actually be incredibly distressing.
article_snippet.sent: As many as 20 per cent of people suffer with the occasional single mouth ulcer and these are of no consequence.
article_snippet.sent: These small painful ulcers usually last no more than ten days and require no treatment.
article_snippet.sent: Mouth ulcers may seem like a minor ailment but can actually be incredibly distressing.
article_snippet.sent: We have a rule in medicine that any single mouth ulcer lasting longer than three weeks should be investigated in order to rule out a cancer of the mouth, but this would usually be an isolated ulcer that does not heal, rather than multiple lesions.
article_snippet.sent: Multiple ongoing mouth ulcers are quite a different issue and certainly warrant further investigation.