Hey guys, I'm 21 and I don't really have a problem at all with facial acne, but I get it fairly bad on my shoulders and upper back. I work out, which I heard can be a source of the problem, but I'm good about showering afterwards and not using the same shirt etc. Any suggestions on products, techniques, etc. that will eliminate this gross problem? I'd rather not have to waste money on a dermitologist... Thanks!