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What is a key characteristic of Type 4 Rosacea?

  1. Skin redness

  2. Skin thickening

  3. Eye irritation

  4. Flushing

The correct answer is: Eye irritation

A key characteristic of Type 4 Rosacea is eye irritation. This is because Type 4 Rosacea is also known as ocular rosacea, which specifically affects the eyes. Skin redness, skin thickening, and flushing may also occur with rosacea, but they are not exclusive to Type 4 and can be present in other types as well. However, eye irritation is a defining feature of Type 4 Rosacea and should be the main characteristic to look for when making a diagnosis.