Rosacea is often characterized by flushing and redness in the center of the face. Skin may be swollen and sensitive. It is typically attributed to hyper-reactive blood vessels, but scientists are still studying the causes and most effective treatments.
Rosacea appears to run in families. It is believed that the immune system plays a role. In particular, people with Rosacea tend to experience an over-reaction to bacillius oleronius. Other theories include an association with a skin mite, a particular type of intestinal infection and the body’s ability to process a certain protein.