I got this strange sore on my breast?!

It's been about a week and it started as a red lump and it looked like some blood vessels popped. So I thought maybe I accidentally bumped myself or it was a nasty pimple. However, it didn't go away. Since I've been a compulsive skin picker since I was a kid, I picked at it till it bled. Though the wound itself scabbed up and healed, the lump didn't. Now there's a reddish ring around it. I looked up Flesh Eating Bacteria and Lime Disease. Both are not it. I tried to google it and a lot of the websites with the keywords were on breast cancer websites. Obviously I was freaking out but there's more than likely a less scary answer to my bizarre bloody bump.