Inverse psoriasis/psoriasis- help!

Hi ladies. So a few weeks ago I thought I might have an early form of PUPPS, but as my symptoms have progressed I realized it's lovely inverse psoriasis (psoriasis flare up in the sensitive skin folds like under the breasts, groin/bikini area, behind the knees, etc) rearing its ugly head instead 😡. I've had psoriasis on my hands and feet off and on for 6 years, but have only had one bought with inverse (3 years ago right before my wedding, when I was stressed to the max). Has anyone here dealt with this before, and if so what treatments (if any) are safe while pregnant? I'm going crazy trying to figure something out, I'm so itchy at night that I can't sleep.