I SO wish I had this information 35 years ago when I was a teen struggling with these issues. We couldn’t afford a dermatologist and I was left to my own (inept) devices. I got through it, but it’s easy to go too far and make things worse. My biggest lesson: I eat carefully and know my trigger foods that specifically affect my face. Thank you for the detailed article on a “gross” but utterly common, and, I’ll say it, an important topic.