Treatment For Pimples

I Am 34 And The Pimples On My Face, Shoulders And Chest Are A Big Bother. I Have Black Spots That Are The Result Of Pimples That Swell Up And If Squeezed, Some Fatty Substance Is Expelled, Sometimes Looking Like A Ball With A Black Head. This Repeats Itself Over And Over And My Face Becomes Blemished Further. What Would Be The Best Diet And/or Non-chemical Cream Combinations To Use?