Dermatologist Estee Williams, MD, is here to answers all your questions about rosacea. We discuss how much laser treatments for rosacea cost (and how they help), which skincare ingredients cause rosacea flare-ups, why topical green tea and azelaic acid might help, which prescription rosacea treatments actually work, how diet changes can reduce rosacea symptoms, and how the bacteria in your small intestine and the lil’ mites on your skin (demodex) could contribute to the condition. You’ll learn a ton about your skin in this Science Corner special—even if you don’t have rosacea.