hmmm...that was helpful, but some things about acne contradict paula begoun. check out cosmeticscop.com. i swear by her advice.
also, for whiteheads (and generally all zits that turn whitish), i LOVE using a blackhead-whitehead remover. they're gone immediately! the trick is softening them (by taking a nice, hot shower), and getting them while they're still small. if you let them flare up, they won't fit int he remover.