What Is the Rosacea Skin Condition?
The facial skin disease called rosacea differs from acne in two ways, according to “Current Medical Diagnosis and Treatment 2010.” First, comedones, or blackheads, commonly appear in acne but not in rosacea. Second, rosacea’s flushed appearance comes from a neurovascular mechanism. When facial nerves are stimulated, blood vessels open, causing blood to pool around the center of the face. Acne works in a different way.