In the past, rosacea has been classified into 4 subtypes. Today, however, clinicians tend to define rosacea by its observable features.
These physical characteristics of rosacea, called phenotypes, may include the following:
• Redness of the nose and cheeks
• Papules and pustules (red or pus-filled bumps)
• Prolonged flushing
• Visible blood vessels (spider veins)
• Eye or eyelid involvement
• Phymatous changes (like a bulging nose)
In addition to these symptoms of rosacea, the condition can have secondary features like dry skin, burning or stinging skin, and skin swelling.