Tretinoin
"I started the combonation of Tretinoin Cream 0.025, Doxycycline, and Clindamycin Gel on November 2nd. I stopped taking the Doxycycline, and I also stopped applying clindamycin after 5 weeks, and only continued using the Tretinoin Cream. Its now been 13 weeks since then, and the results are worth the wait. The only thing that you have to keep in mind is that it takes a long time to work. I was expecting to see clear skin by 6-8 weeks but I was still purging with new acne by the 10-11th week. Toward the 12th week everything flattened out and now all I have is scarring and hyper pigmentation. But with the continued usage I notice that they are getting lighter. So if you are feeling down about the results wait it out, and it will pay off."