hey, i have the exact problem as you. i get a couple of pimples but not full on acne. also i have the most annoying black heads on my nose. argh! i use proactiv and i dont care what anyone says, proactiv damn works!
its early days with my new proactiv ( i have used it in the past but had to cancel) but my skin feels great, my pimples are really clearing up, i love the refining mask and i know that continued use of proactiv after your blemishes have gone is safe.( i learned that with my past experiences with proactiv)
now im just going to keep useing it twice a day everyday, and hope that those blackheads will soon disapear or at least are minimised.