You get them often?: Aphateous ulcer or canker sore almost always starts as a red spot then white patchy or develops a tingling or burning sensation before any other symptoms are obvious. If you have a canker sore, your mouth will feel painful. Usually heals on its own within 10 to 14 days. To be sure see your doctor or dentist.
Answered 6/13/2014
5.1k views
See your dentist: There are n=many things it could be but you need to see your dentist to rule out severe problems.
Answered 6/13/2017
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