Differ really works! My face is now smooth as can be, no scars but sadly a lot of red marks. I recently found out that the red marks will fade after 6 months, but my GP gave me doxycycline 100mg capsules enough to last me 8 months! Anyway I read the side effects and they were horrible! Swollen tongue, itching down there and a bunch of other stuff and I also got a yelling at by my mum banning me from using them. But last night she changed her mind bringing the topic back up saying that I should start using them next week Friday, so now i'll keep you updated on that as well.