Rosacea is a chronic, inflammatory skin condition, which principally affects the face. Rosacea causes facial redness and produces small, red, pus-filled pustules (bumps). Rosacea worsens with time if left untreated. It is often mistaken for acneor eczema, or some other skin allergy.

Symptoms can include facial flushing, facial redness, spots, thickening of the skin, and eye problems such as dry eyes and sore eyelids.

The exact cause of rosacea is unknown, although a number of potential factors like blood vessel abnormalities, skin peptides, microscopic mites, sun damage and genetics have been suggested.