Rosacea is a chronic skin condition characterized by facial redness, flushing, and visible blood vessels, often accompanied by small bumps or pustules. The exact cause remains unclear, but the condition involves abnormal blood vessel reactivity and inflammation. Triggers vary widely between individuals and may include temperature extremes, spicy foods, alcohol, stress, or certain skincare products. While rosacea is not curable, its symptoms can be managed with appropriate care and lifestyle adjustments.