I would strongly recommend zinc tablets to Acne sufferers. Not sure exactly how it works but reduces inflammation or something. I had my Acne under control taking the zinc tabs once a day and avoiding refined Sugar - skin was great but then I ran out of the tabs and fell off the wagon with regards to diet and my skin really flared up again, now I am desperately trying to sort it out again.
You normally need a prescription for zinc but give it a try.
My Acne is caused by excess oil on my face thanks to the mirena coil - if anyone has any advice on how to reduce oil on the face PLEASE let me know!!