Health researchers notice that a variety of triggers such as alcohol consumption, spicy foods, certain medications, smoking, as well as climatic changes like strong winds, extended UV exposure and heat, are known to cause rosacea to flare.
Emotional factors such as stress, fear, anxiety, or embarrassment may also produce blushing and aggravate rosacea.
Other factors like genetics also play a part so it is possible to inherit the genes for rosacea. The body’s immunity may also play a role as scientists found that most people with acne-like rosacea react to a bacterium called bacillus oleronius. This reaction causes their immune system to overreact.
Rosacea sufferers are also found to have large numbers of demodex a mite that commonly lives on everyone’s skin, especially on the nose and cheeks. Additionally, abnormalities in the blood vessels of the face can also cause flushing, persistent redness, and visible blood vessels.