my boyfriend has gotten red bumps on his finger after fingering me the past few times he’s fingered me. they go away after a few minutes but they itch. we’ve been together for 8 months and this hasn’t happened before, and i haven’t been with anyone but him and he hasn’t been with anyone else either and neither of us has ever had an STD. i get yeast infections sometimes but i haven’t had any symptoms of one lately. why is this starting to happen?