Okay, it started one day after being sick. I had never had a yeast infection before but along with this yeast infection, I seem to have cuts on the external part of my vagina. My boyfriend and I just started having sex, and to say the least, he's very big for me. They burn extremely bad when I try to wash myself. Is it possible that these cuts are from him? Or is it something to do with my yeast infection? Or is it something else?