I developed PUPPP around 36 weeks weeks and had my twins at 38 weeks. I feel for you hun because I know how horrible this is. Mine started in my stretch marks and then just spread everywhere. It was so itchy and annoying. Most days I was in tears just from being so frustrated. I found pinetarsel baths helped a little (although it stinks so bad ) also I was putting all sorts of creams on and sometimes calamine as well but that can dry the skin a bit. My obgyn gave me a script for a mild steroid cream and it really got me through the last week of my pregnancy so perhaps ask for something like that.

The good news is that once the babies were delivered I can't remember feeling the itching again. My rash was still there for about 5 or so days but I couldn't feel it But as Snacks said it can last for a couple of weeks after birth.

Good luck for the last couple of weeks