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A member asked:
I had what looked like a blister on roof of my mouth a couple of days later it turned into this red sore that was really small but it has grown bigger?
A doctor has provided 1 answer
Canker sore: Canker sores are the most common oral lesions. The cause is unknown. These lesions are bumpy and painful. Topical medications OTC applied directly, mouthwashes, and oral medications can relieve pain or inflammation. See a dentist for a laser canker sore treatment.
Answered 5/12/2014
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