Rosacea and regular acne are not the same condition. Acne vulgaris, the type that is common among teenagers, causes whiteheads, blackheads, or pimples. Rosacea, on the other hand, is an inflammatory skin condition marked by a disorder of the facial blood vessels. In rosacea, these vessels are hypersensitive to stimuli such as sun, wind, skin irritants, and other triggers.
Rosacea can cause flushing, tiny broken facial blood vessels, eye irritation, an acne-like rash, and facial redness, burning, and swelling. Rather than clogged pores, rosacea acne consists of red bumps (papules) filled with clear fluid. People with rosacea often have red blotches on their nose, cheeks, chin, or forehead. Left untreated for years, the condition can sometimes cause a red bulbous nose (rhinophyma), which is more likely to occur in men. Unlike acne, rosacea is more common in people over 30.