Knowing Your Asthma Triggers Can Help Prevent Attacks

(Undated) -- One of the best ways to keep asthma under control is to know what's bringing on the attacks. Doctor Rachel Taliercio says allergen triggers are very common. Other common triggers are cigarette smoke and air pollution. However, asthma attacks aren't just brought on by things put into the air. Sometimes very cold and dry air or even stress will cause asthma to act up.