[Acne] My skin went from pretty good to pretty terrible in a year. What happened? And what can I do?

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Standard post, really. College dude who has always had some mild/decent acne for most of his older life but never anything super terrible... Until this year when my skin has become a war zone of scarring and red spots that just will not fade.First I'll post some pictures from spring of last year that show my skin in different stages and then I'll do some taken a week ago.Here's a year ago-http://i.imgur.com/1iqzai7.jpghttp://i.imgur.com/cq8St2z.jpghttp://i.imgur.com/rgXL3fa.jpgAnd this is what my skin looks like as of a week ago-http://i.imgur.com/Nke2G9q.pnghttp://i.imgur.com/pxrl3fz.jpghttp://i.imgur.com/zyLTtvl.jpgHuge difference, right? And I'm not sure what happened. My cheeks are just destroyed. My diet has stayed the same since last year; in January I cut dairy almost completely out of my diet to see if that would do something and it didn't. Maybe it's sugar and chocolate? I've been a chocolate fiend my entire life but my skin has never destroyed itself like this.I went to see a dermatologist back in October and they just gave me some generic advice about washing my face with a cleanser and prescribed some tretinoin and finacea that worked okay for a little bit but has now stagnated.I also have gone through 5 glycolic acid chemical peel treatments at a cosmetic dermatology center and have seen little help there.I'm at my wits end here, guys and my confidence is at an all time low. I've cut dairy from my life, tried dermatologist recommended topical medicines and went through professional chemical peels and nothing has helped. Am I a lost cause? Any advice would be awesome. Thanks.
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Submitted by coldplaying