Rosacea is a chronic inflammatory skin condition that causes persistent redness, flushing, visible small blood vessels (couperose), and sometimes pimples on the face. It primarily affects the nose and cheeks and occurs in flare-ups, often triggered by sun exposure or stress. Symptoms and characteristics: - Redness and heat: Facial redness that comes and goes, with a burning sensation. - Visible blood vessels (couperose): Small, dilated blood vessels. - Pimples (papulopustular rosacea): Inflammatory lesions resembling acne, but without blackheads.