im currently on a repeat perscription for the drug and seriously it has worked wonders for my skin. Dont get me wrong when i first started taking it i lot quite a lot of weight rather quickly but i stopped it for a few months and my skin was all out with sports again however dont use the lotion (Zineryit) because thts what i thnk cause some skin colouration..it actually looked like i was waering foundation which when tryin to convince ure m8ts tht its something else is pretty tough..So since it worked really well on me i went nd got a reapet perscription for it, been on it for about a year now and i have no problems with the spots, ok i get the odd one or two now and then but thts ok. Ask ure doctor about Minocin MR, thts the form of minocyclin i use and its pretty effective. infact its the strongest u can get, next step up is going to see a dermatologist...
Also mayb try modifying ure diet, u'll be surpirsed how much eating more fruit and veg and drinking water can do for ure skin....