Spironolactone
"I had HORRIBLE cystic acne on my chin - i'm talking 20 huge cystic pimples on my chin at any given time - no amount of makeup could cover it up. It was causing me major concern and depression. 

My Derm put me on Accutane that worked fairly well (aside from bloody noses and extremely dry skin) but as soon as I finished Accutane, my acne came back with a vengeance. 

So I went back to my Dermatologist and she put me on Spironolactone. She  told me the pills could take up to 2-3 months to take any effect BUT here's the thing: it worked STRAIGHT away! I'm telling you - I took 2 pills! One on Sunday then another on Monday and by Tuesday my pimples were almost gone! I honestly think this is some sort of miracle pill...it's changed my life."