Without seeing does it make it a bit hard, but going by your description, it does sound as though this may be the start of thrush. Which is a type of yeast infection. For now, rinse your mouth with 1/2 peroxide and 1/2 water. Also eating yogurt and holding it in your mouth a bit will help too. If there is not change by doing the above in a couple of days, then do see your doctor, as you may need a course of antibiotics.
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