Go down to the drug store and buy the following
A bar of Dove soap
Some 5% Benzoyl Peroxide gel (Oxy5 is a common brandname)
Some Nutrogena Rapid Clear Acen Defence lotion
and use them like this
At bedtime, wash your face with Dove, dry, then apply the benzoyl peroxide all over the areas where acne occurs (nose, forhead, cheeks, chin)
In the morning, again wash the face with Dove, dry, and apply the Nutrogena lotion all over
The acne might actualy get a bit worse for a few days, but then should quickly start to improve. Id you are still getting bad acne after 2 months, go and see your doctor.