I have lumps on my shoulders and chest, I am 24 and this has been a problem since I had acne when I was a teenager. Would like to get rid of them now, what are they and are there home remedys to get rid of these that I can try? I have attached link to pictures so you can see what they look like

http://imageshack.us/photo/my-images/232/80112130.jpg/
http://imageshack.us/photo/my-images/20/80224674.jpg/