Doxycycline
"I am a 23 year old female and have suffered from mild/moderate acne since the age of 12 my main problem area is my chin. I have tried every path to clear this including diet/skin care(several different brands)/water/exercise to clear my skin but the only thing that ever works and I find myself going back to is Doxycycline. I have taken it on and off for over 10 years. I wish i could find a more natural path to clear my skin but Doxy is so effective for me and it works within days. I have zero side effects."