My face for the most part is clear. But I get these little pimple like bumps under the surface of my skin. They don't usually amount to much but they make my face look awful. Plus my skin has gotten a little dull over the winter. My question is, would an at home version of microdermabrasion be the way to go? Or are there any other suggestions? (not extremely expensive suggestions) I've used every type of acne stuff available at the drug store (for uncomplicated acne) but my skin is a bit sensitive and a bit dry so I have to be careful.