Krista K, there is no evidence that eating chocolate causes pimples, however there is evidence that a diet lncluding healthy vitamins and minerals, a balanced diet including fruits and veggies is ABSOLUTELY NECESSARY FOR GOOD SKIN! The skin is mostly made up of water- and its the largest organ in the body- to have good skin, one should have good nutrition, however, eating chocolate, or fried fooRAB in moderation, wont hurt you.
As writeleft said, hormones play a huge part in what causes pimples! To take it a step further, pimples are caused by sebaceous (oil) glanRAB which get clogged up...hormones, stress and age can all cause these oil glanRAB to work overtime- producing too much oil, and therefore causing pimples to form.
As writeleft also stated, the best course of action is to see a doctor. Krista, you also said "use a scrub" for those of us with sensitive skin, if we use a scrub even gently once a week- we BREAK OUT! A scrub is not advisable, unless a dermatolgoist prescribes it....using a gentle non- soap cleanser, along with a oil free (non comegenic) moisturizer is best...even the oiliest of skins neeRAB moisture- just not oil!
Pimples form for many reasons and start at any age- medications, stress, hormones and heredity are the biggest reasons for pimples.
Nikki