Itching like crazy! Help?

I had really itchy armpits, stomach, and bikini line while i was pregnant even tested for cholestasis which came back negative. I am now 4 weeks PP and the itching came back with a vengeance!! I feel like I’m scratching my armpits raw, belly button has started up again too!!

Idk what it’s from or what to do to make it stop?!

Hydrocortisone, Benadryl, and an ice pack only relieves it temporarily...

anyone else going through this or know ways to help? I plan on asking my OB at my 6 week check up. Would love some relief before then! 😫