Gyno apt SOS SOS

Im going to the gyno in 2 days to get my breasts checked but my vag has also been very very itchy for a while... BUT im going to have my period therefore i really don’t want her to check me because thats gross. But if i just mention to her whats going on down there do you guys think she can still prescribe me something or tell me what to do without checking?! Has anyone been through this? Will they check anyway or tell me to reschedule to take a look?!?!? SOS