Prettybow,
I suggest SkinCeuticals Serum 10 AOX. It won't excite your acne and over time, with consistent daily use, the brown spots will fade and the acne will clear. Also try using SkinCeuticals Phyto Corrective Gel along with the serum to calm sensitive, problematic skin. Phyto Corrective Gel can be used several times a day, as needed, and it's very effective for rosacea and eczema as well.
Use an antibiotic cleanser. I suggest NeoStrata Moisturizing Antibiotic Cleanser. It's oil-free but non-drying. And never, never scrub your face or pinch pimples and blackheads or you'll end up with scars. Commercial products are too harsh for acneic skin and too often strip the skin's acid mantle, its barrier against bacteria, thus making the problem worse. Good luck.