I've heard that people can cause rosacea by using too many skincare products. Is this true?
According to the National Rosacea Society, theories abound regarding what causes rosacea, but no one knows exactly what triggers the condition. Some doctors believe that a disorder of the blood vessels causes the redness and blisters that characterize rosacea. Others believe the culprits are bacteria, skin mites, or fungus.
Still others believe that more people today suffer from rosacea because of...

