Rosacea is a chronic inflammatory skin condition that primarily affects the face, causing persistent redness, visible blood vessels, and, in some cases, pimple-like bumps. It is a common but often misunderstood disorder that can significantly impact a person's quality of life. While the condition is not life-threatening, its unpredictable flare-ups and visible symptoms can lead to embarrassment, self-consciousness, and emotional distress.

One of the most challenging aspects of rosacea is its variable nature. Symptoms may appear suddenly and worsen over time if left untreated. Many individuals experience cycles of remission and exacerbation, where the skin improves temporarily before another flare-up occurs. Rosacea typically develops in adulthood, most commonly between the ages of 30 and 50, and affects both men and women. However, men are more likely to experience severe symptoms, particularly skin thickening on the nose, a condition known as rhinophyma.

The exact cause of rosacea remains unclear, but research suggests it results from a combination of genetic, environmental, and immune system factors. Studies indicate that an overactive immune response, abnormalities in the skin's blood vessels, and an increased presence of microscopic skin mites (Demodex folliculorum) may all contribute to its development. Certain triggers, such as sun exposure, spicy foods, alcohol, stress, and extreme temperatures, can exacerbate symptoms, making management crucial.