Hi, I am a 48 year old pale complexioned man. I had clear skin in teens and twenties, but now have terrible acne problems in my 40s. I get black heads and deep swollen pimples, and even white scars that look like sub-terranian pimples, but just seem to be skin. I went to one dermatologist and she recommended a permanent low grade anti-biotic treatment, which I was not keen on, as there are "good" bacteria in my system, which I don't want to kill. However, I did try a 5% benzoil peroxide and anti-biotic cream, which helped, but I need to go back to her quarterly for refills, which is an expensive nuisance. Any thoughts?