Rash/hives?

Amber
I'm 18 weeks and yesterday I woke up with 2 spots about an inch long on my face that were red and raised and they itch and feel tingly. Throughout the day yesterday several more of them came up on my legs and one on my lip that makes it hard to eat. This morning one of the ones on my face has gotten bigger and my eye is puffy.... Should I just try to put cream on it or go to urgent care or should I call my OB? It's not awful right now, just annoying, really. If I wasn't pregnant, I would just try to treat it at home for a while but I don't know if it could cause infection or even if it's pregnancy related. I've looked up the pupps rash but that's not what it looks like.