Baby rash on face.... HELP!

Red rash with raised white bumps. Freaking out. I circled to see if it was spreading and obviously it is a little bit. I noticed when I got him out of his car seat at home after I picked him up from daycare. It started as two large whiter bumps and then turned into some tinier ones. They are white and raised and they seem to itch him a bit. Any idea? On hold with his ped.