Hello Emily,
I am new around here and do not post often at all, but after reading your post (and the responses) I really wanted to post to you. I too am one that suffered from bad acne, mostly due to hormones, I assume. I went on Accutane about two years ago and absolutely adored the results...for about a year. Then things slowly got oily again, and I've recently been breaking out again. Nothing like before, but lots of little pimples that leave red marks for months. Anyway, since I have VERY sensitive skin that only gets worse with most products, I use Mary Kay. MK Timewise cleanser and moisturiazer for normal to oily skin are great for breaking up and really cleaning off any makeup and oil you have on your face, then moisturizing without making you oily. After that, I stick with plain old Neutrogena 2.5% benzoyl peroxide lotion. That's it for me. I'm a BP girl, and the reason I stick with MK is because their products are made for sensitive skin and are all (I believe) fragrance free.
One poster also mentioned microdermabrasion. Being that my pocketbook will not allow for such treatments on a regular basis, I went ahead and tried the MK microdermabrasion set that they sell and I'll tell you, it's made a big difference in my skin over the past few months. When used consistently (and no, I'm not always consistent like I should be!) it really gets that outer layer of skin sloughed off without being too harsh. I have some of the most sensitive skin on the planet, so if this works for me, it should work for you too. I tried Proactive (worked for a while, then things got worse) and L'oreal's Acne Treatment Kit (made me worse almost immediately) and a variety of other things, none of which ever worked for me. MK cleanser and Neutrogena BP lotion are the two things I always go back to, over and over again!!
Good luck finding something that works for you and your skin. I understand your frustration more than you know!!!