We don't look at pics here, because none of us are doctors, and a diagnosis can't be made on a pic alone.
However, I'd wonder if you are having an allergic reaction to something, staph, or maybe molluscum. Is there a reason you haven't been to the doctor yet? You should, and should go soon since its spreading.
Aj
http://i609.photobucket.com/albums/tt177/sleveninch/100_5487a.jpg
http://i609.photobucket.com/albums/tt177/sleveninch/100_5490a.jpg