Am quite sure, but the same thing happened/happens to me, and it really did itch as well both on the outside. I went to my doctor and he told me that I have yeast infection and can't be treated till I give birth, but I could use a cream to calm the burning/itchiness down. But am not sure whether if you have the same thing as me since you only measured the burning part n not the itchy part. But all in all seek your doctor for further information and if possible treatment, good luck to you (: