are u male or female?
If ur a woman, birthcontrol pills work wonders.
But sometimes just drinking more water n taking a look at ur diet is enough.
Its cheaper than drugs atleast, so maybe worth looking at?
I know that ProActive is a good one, tends to dry out your skin though. I took Accutane way back in the day, don't even know if they still have that on the market, it helped so much. I have heard that high doses of Vitamin D also help, I have heard that, haven't tried it. Ask your doctor first.
my son had very bad acne on he's face, he started using clean clear in the mornings and just before he went bed he used Clearasil ultra over night Seruim and now he face clear of acne , you can buy this at boots chemist hope this is helpful for you good luck