What skin condition is characterized by excessive redness and flushing?

The skin condition characterized by excessive redness and flushing is rosacea. This condition primarily affects the face and is often marked by a tendency to blush or flush easily. In addition to the redness, individuals with rosacea may experience visible blood vessels, bumps, and, in some cases, skin thickening. The flushing is due to the dilation of blood vessels in the skin, which can be triggered by various factors such as temperature changes, spicy foods, alcohol consumption, or stress.

Unlike eczema, which typically manifests as dry, itchy, and inflamed patches of skin, rosacea is specifically associated with persistent facial redness and flushing. Psoriasis, on the other hand, is characterized by thick, red patches covered with silver scales and is not typically associated with facial flushing. Acne is primarily an inflammatory condition leading to pimples and does not focus on excessive redness as the main characteristic in the same way rosacea does. Thus, the defining trait of excessive redness and flushing in rosacea clearly distinguishes it from these other skin conditions.