Rosacea is a common skin disease that causes redness, papules, and swelling on the face. Often referred to as "adult acne," rosacea frequently begins as a tendency to flush or blush easily. It may progress to persistent redness in the center of the face that may gradually involve the cheeks, forehead, chin, and nose. The eyes, ears, chest, and back may also be involved. With time, small blood vessels and tiny pimples begin to appear on and around the reddened area; however, unlike acne, there are no blackheads.
When rosacea first develops, the redness may come and go. Some people may flush or blush and never form pustules or papules. Small dilated vessels also may be present due to prolonged sun exposure. However, when the skin doesn't return to its normal color, and when other symptoms such as pimples and enlarged blood vessels become visible, it's best to seek advice from a dermatologist. The condition may last for years, rarely reverse itself, and can become worse without treatment.