Ezanic Azelaic Acid Gel 20% is a prescription topical treatment for acne and rosacea, working by killing acne-causing bacteria, reducing inflammation, unclogging pores (keratolytic/comedolytic), and fading post-acne marks or hyperpigmentation. It's applied externally to clean, dry skin and helps clear breakouts, redness, and bumps by promoting skin renewal and inhibiting bacterial growth.