SOMEONE PLEASE HELP! RED SPLOTCHES ON MY BREAST?!

 Does anyone know what these could be? they started to come up about a couple days ago, don't itch, don't hurt, feel like the texture and size of a tiny-medium mosquito bite yet don't bitch at all. they are primarily on my breast but I have started to see them move now to my belly button area.  on my right breast there are you can see in photo 1 a very large almost rash looking mask. this is the only one that hurts but only when I scratch it, it also feels dry and unlike the rest of my skin. if anyone knows anything please comment anything will help. I can't make it to the doc until Monday so any comment will help thanks so much!