Non-itchy rash- it is spreading
About two months ago, I developed this rash in between my breasts. I thought it was a heat rash beacuse I was wearing a sports bra to work. It was a reddish blotch with little red "dot like" spots around it. I didn't think much of it, and figured it would go away on it's own. Well, it didn't. I thought maybe it wasn't able to dry out completely due to how hot the weather was. Well, I noticed about 3 weeks ago, it started spreading a little bit down my belly. Today, I get out of the shower and it is going up my neck. They are small dot shapes, non-itchy and red colored. You can really see it when I get out of the shower. I am kinda freaking out! Any ideas as to what this could be?!!!