Rash during pregnancy

Deanna

Hello. I’m 28 weeks & this rash started on my belly 2 weeks ago. It worked its way to my back, arms, legs, and face as well. It’s VERY itchy. Was wondering if anyone has had something similar?! (Already went to doctor & she prescribed hydrocortisone lotion & said if it’s not gone in 2 weeks she would do blood work then). Thanks in advance!