I went to the doc's a couple of months ago about acne, she gave me some random blue gunk called "Zineryt" which worked wonders. Disadvantages are that it stings like hell, smells like salt & vinegar, and leaves a greasy film over your face when it's on, that's why i only ever used it at night! Finished the course quite a while ago, and no serious problems since then..
Anyway, just a recommendation =o)