Doxycycline
"I was put on doxy 50g once a day I am onto my 3rd week I can tell you in the first week saw a bit more flare up in my acne, 2nd week came around worst flare up I've ever had! And it's still continuing. Either my dosage is too little or it's just making things a whole lot worse. My face wasn't that bad 3 weeks ago. I have never had acne this bad before I'm 23 and have always had pimples but only small ones and there odd big one.. now cheeks, jawline and neck covered in cystic acne 

Starting doxy I even stopped all sugar, started drinking green tea and eating more fruit and only drinking water!"