If you primarily suffer from break outs around your nose, cheek, and chin,

your acne-causing bacteria may be living in your nostrils. 30% of the population are thought to be persistent Staphylococcus aureus nasal carriers. http://cid.oxfordjournals.org/content/45/4/475.full

If your break outs predominate around your ear, neck, jawline and temples/forehead

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the acne-causing bacteria may reside in your ears. S. aureus http://www.ncbi.nlm.nih.gov/pubmed/12542200 and Pseudomonas aeruginosa http://emedicine.medscape.com/article/226748-clinical are two potential ear members that are known to cause folliculitis.