"i have been on benzaclin for approx. 1yr and 4 months now, and in the beginning (first 2-3 months) i was noticing a big improvement and my acne was starting to go away. however, my acne came back even worse a couple months after and the benzaclin was not helping it at all. currently, i am still using benzaclin in hopes that it will work again for me, but i don&#039;t think it will to be honest :("