I'm certainly not a doctor, I'm an internal medicine medical assistant for 10 years. If you just noticed it yesterday and it's not something that has been getting larger for awhile, I would bet on a canker sore, or a small ulcer. There are prescriptions you can get from the doc that are swish and swallow or swish and spit that may help it heal faster. Does it hurt? I'd say go to the doc and see what they say.
__________________ ~Paula~ proud mommy of
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