Hi. I just noticed a small rash under my left breast (where the under-wire of my bra rests) Wednesday, the 27th while showering. It does not itch and does not hurt. It looks like raised red bumps and some bumps are black/brown. To the touch, it feels bumpy; the black/brown bumps do not feel like scabs. I noticed that a piece of the under-wire of my bra was exposed out of my bra and could have scrapped my skin at night (while I slept). I also noticed tiny red dots (possibly blood) on the exposed under-wire. However, the rash does not look like an abrasion. I do not have a history of developing rashes. Do have you any idea what this could be?