I looked and now it seems to looks liek it is a blister, could that still be a yeast infection?
leave your cut alone. dont itch your vagina you will just irritate it more. It COULD POSSIBLY be a yest infection it could also be other things. Leave it alone see what happens, or go to the grocery store to get a yeast infection test. If they test comes up negative then go to the doctor to see what else it could be.