Help please

Hi there, Its my first pregnancy and I need advice on how to control itch. I have been to my doctor and was told I had a yeast infection, BV and dry skin. I have used everything they prescribed to me and nothing seems to be working. Things I’ve tried on my own: baby powder and Vaseline. Neither of these seem to relieve the itch. I’m dancing around like a money and at this point.. I can’t see why anyone would want to have more babies 😩 please help..