I have cystic acne and have had it since i was 12 when my trauma started it has gotten extremly worse over the years and at the end of 2007 i decided to go to a dermatologist since i got medicaid. the first cyst she drained was tested and found out i had staph in it. I wondered how long i had been having that! (it wasn't the contagious kind unless i poped 1 and rubed it onto a wound) my scarring is so bad im getting acid treatments that burn the skin so brand new skin forms. it is stress, genetics, and hygene and a little bit of your diet can affect it.