QUESTION: "I have really old blackheads on my nose. I've tried bands, vaporizations, exfoliations but nothing works. What can I do?"
ANSWER: Blackheads appear when sebum oxidizes, and we're going to be honest: If you’ve tried everything else, only extraction by a licensed aesthetician or dermatologist will do the trick. But to prevent future outbreaks, Beverly Hills dermatologist Harold Lancer, who works with Oprah Winfrey, says modifying your diet will have a huge impact, "Reduce dairy, caffeine, spicy and acidic foods." An oil control product like Glycolic 10% Exfoliating Oil Control Gel by DDF ($48; sephora.com) is also key for prevention.Read MoreLess