Factors (called triggers) that may cause a flare-up of
rosacea include:
- Weather conditions, such as exposure to wind and hot or cold
temperatures.
- Foods, such as drinks with alcohol, hot drinks, or
spicy foods.
- Skin care products, such as lotions, creams, or
soaps.
- Activities, such as exercise, hot baths, or situations that
cause stress.
These triggers cause the blood vessels in the face to relax and open
wider (dilate), producing a sudden increase in blood flow and causing the face
to flush. Triggers for flushing affect people differently-a trigger that
affects one person may not affect another in the same way.