Several things. Although anyone can develop rosacea, you may be at more risk if you have fair skin, light hair, and eye color. Are between the ages of 30 and 60, especially if you're going through menopause. Experience frequent flushing or blushinghave a family history of rosacea. Most people who suffer from this have "triggers" that set off the symptoms. These can be alcohol, spicy food or anxiety to name a few.
Allergies. Those with allergies are most at risk, as most rosacea is caused by allergies. Treatment should use a therapy that can address reactions to foods, chemicals and inhalants (dust, mold, etc.).