Hi Im Very Embarrassed About This But I Have A

Hi Im very embarrassed about this but I have a boil in my butt crack about an inch away from my butt hole it appeared yesterday and it's been irritating and painful now it got bigger and more irritating and very painful I can't sit properly or walk properly..I'm almost in tears and so frustrated not to mention im 8months pregnant and I don't know why this is happening please help me get rid of it or soothe the pain..it's very painful!

Thank you!