Help 38w and SO itchy

I’m 38w and I have developed an extremely itchy rash on my nipples, my stretch marks have started to itch and turn red and also have a rash and I’m getting new ones. This never happened with my first. I’m waking up at night itching. I am sooo ready for this baby to come out I’m so uncomfortable!! Also so worried about breastfeeding with this nipple rash! It’s awful! Anyone have any advice??