"i have  had moderate acne for 6 months now and i am 22. i am currently week one on doxycycline with with topical retin a... i didn&#039;t actually read any reviews on this before taking it. now that i have read it, i hope i don&#039;t get the horrible purging phase and really worried about relapse after stop taking it. at the moment i haven&#039;t had any new breakouts apart from one on my chin few days ago. there is a bit dryness  around my jawline in the mornings which is because of retin a. but haven&#039;t had any side effects, plus some of my acne and acne marks have cleared.  hopefully it clears up in a month as i have graduation... i will keep updating"