Heres what you do:
Wash your face twice a day with a soapless clenser.... you can use Cetaphil (or the drugstore brand, which is 1/4 of the price, and just as good)
After washing at bedtime, apply 5% Benzoyl peroxide gell all over the face (nose, forhead, cheeks, chin) You can buy Oxy5, but there are generics that are dirt cheap and just as good, this kills the pimple causeing germs in your pores and on your skin
Wash it off in the morning, again using your Cetaphil. Then, use Nurtogena Rapid Clear Acne Moisturiser all over your face, this contains salicylic acid, which will unblock your pores
Your facve might geta bit dry and red at first, if this happens, dont apply any medication for a day, but apply a moisturising ltion to let your skin recover, then go back to the routine.
The redness etc goes away after a couple of weeks, and after about 2 or 3 weeks, you will notice less pimples, and by 6 weeks, your skin will be realy good.