 Learn the early warning signs, facial redness, like a sunburn that lingers and seems to be getting worse, visible blood vessels and bumps and pimples. In some people, rosacea can also affect the eyes, causing irritation that could even lead to vision loss. Don't let rosacea wreak havoc on your personal and professional life. If you have any one of these signs, see a dermatologist for diagnosis and treatment or visit the National Rosacea Society at rosacea.org.