Chibi got pimples really bad recently. I got "peroxiderm" shampoo at the vets that is suppsed to help exfoliate the skin so the pores dont get clogged. I also found that mixing in a little Neutragena "T-Gel" helps a lot, I've been having to wash him once a week to keep them under control but I think he just has a really bad case. I've heard once they start getting pimples its a life long affliction though- I hope this isnt true