"i have suffered from moderate to severe acne. my doctor prescribed me this medication the first week of july 2015. i literally saw no results until after 4 weeks. i told my dermatologist that it doesn&#039;t look like it really works for me but, he told me it usually takes 3-4 months to really see the improvement. also, a week after i saw him i did see a huge improvement. i had a lot of bumps on my forehead and all around my chin. my face is very smooth now, just have a couple of scars. nothing good makeup can&#039;t hide when i have to head out. i also avoid the sun as much as i can. bc i started to notice my skin was getting flakey but i use a good moisturizer to get rid of that. i take one when i wake up and one before i go to bed."