K-Beauty Glossary
What is Rosacea?
Chronic redness + vascular sensitivity
Rosacea is a chronic inflammatory skin condition marked by persistent redness, visible blood vessels (telangiectasia), flushing, and sometimes bumps/pustules (papulopustular rosacea). Triggers: heat, alcohol, spicy food, UV, certain skincare actives. Treatment: azelaic acid, ivermectin cream, metronidazole, oxymetazoline; avoid aggressive actives, fragrance, physical exfoliation. PHA is the gentlest exfoliant tolerated by rosacea-prone skin.