Minocycline
"I took this medication a couple years ago. Within just a few weeks it was working amazing and my skin was clearing up and looked great!!! I went off the med so that I could go on birth control.  I've had trouble with several birth controls and now 2 years later at the age of 22, I'm not currently on any form of birth control so I started this up again about 3 months ago for my acne. I was on it for 2 months, never missed a dose....and there was not one change in my skin.  I'm sure it all depended on my health 2 yrs ago and now, the different meds i'm on now and wasn't in the past, etc. Several factors could be played as to why it's no longer working for me at this time. So I'd say at least give it a shot because when it did work, IT WORKED!"