Doxycycline
"on my second week of doxycycline and I already see major improvements. i mostly break out on my jaw area and so far i haven't gotten new breakouts besides maybe one or two pimples whiteheads that go away very quickly.  It has got rid of my cysts, hard bump acne. I mostly have scar and hyper pigmentation now. didn't vote 10 stars because i haven't finished first month yet"