Rash on my face??

Madisen • Engaged to the love of my life, we have a son Kaiden Wayne Kekoa Samson and our daughter Issabella Nohea Lynnae Samson will be here 02/10/2017. 💙💙❤❤
So I have this rash all over my face that won't go away, it began appearing around 4:30pm yesterday and has just gotten worse since then. I didn't eat, drink or use anything out of my normal routine so I'm completely confused to what it could be. It's very itchy and is becoming very irritating. I'm 37 weeks & 2 days. Does anyone know what it could be, I don't want to go to the hospital if there's some sort of solution although I feel as if I've tried just about as many things I could think of.