What can I do?

I’m pregnant and pregnancy discharge is OUT of this world. I haven’t been wearing underwear because now that I’m 8 1/2 months pregnant my underwear are super tight on my inner thigh area, well basically my bikini line. So because I stopped wearing underwear my discharge went onto my inner thighs. Now I have a huge bumpy rash on my bikini line and it’s so itchy and it’s getting bigger because I’m scratching it although I’m trying not to. My doctor prescribed me a cream but I can’t get it yet. What can I do? 😩😩😩😩 help!

Edit: you’re stating the obvious…. I’m talking about for the rash! 🙄