Asthma triggers are different for everyone. Here is a list, compiled by the Pennsylvania Medical Society, of some of the most common triggers.
- Physical activity: As running and other strenuous activity can bring on asthmatic attacks, parents should talk with their children’s doctors about physical activity pre-treatment programs. Asthma doesn’t need to limit a child’s involvement with any sport or physical activity.
- Infections: Some children experience episodes as a result of colds, flu, or sinus infections. Asthma sufferers should take precautions to keep healthy during the winter cold and flu season, including getting plenty of rest and eating well-balanced diets.
- Allergens: Indoor and outdoor allergens—including dust mites, molds, pet dander, and pollen—are common triggers. Exposure to wintertime allergens can be reduced by installing high-efficiency filters on furnaces, with regular vacuuming, and by keeping pets out of the bedrooms.
- Irritants: Cigarette smoke, air pollution, strong odors, aerosol sprays, and paint fumes can irritate the tissues of the lungs and upper airways.
- Cold weather: Many asthma sufferers identify cold air as a trigger, as it dries out the lungs and causes the muscles around airways to contract. In addition, windy conditions may stir up allergens.
- Strong emotions: Emotional stress—such as excitement, laughter, and anxiety—sometimes triggers an attack.