I recently went and had a facial and much to my surprise was informed by my esthetician that I seem to have developed a mild case of rosacea. I had never even considered this possibility, but in hindsight it made a lot of sense. I had noticed more redness in my face as of late that wasn’t blemish-related. Of course the first thing I did was some research. What I found out is that experts are not sure what causes rosacea. They know that something irritates the skin, but it doesn’t seem to be an infection caused by bacteria. It tends to affect people who have fair skin or blush easily, and it seems to run in families.