[Acne] Been having pretty bad facial acne for some years, could anyone recommend what I should be doing in terms of regimens/routines and such?

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I've been dealing with it for maybe 6 years or so, its gradually gotten worse. Ive tried some treatments including Epiduo, Minocyclin, and Doxycycline (from what i can tell, no real improvement). I do try to wash my face with a cleanser everyday, to no avail. A dermatologist i went to when i was younger, had told me that if i ate non-processed foods it would clear things up. However I have kept that diet for 3-4 months at a time without seeing much change... Any advice would be appreciated (what are your thoughts?).It does not feel good at the current stage of my life, to have worse acne than most teenagers. (age 22)http://imgur.com/a/WUVLy(I did post this in the acne subreddit, but only had one reply)
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