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Asthma Triggers

It is important to know what things make your asthma worse. These are called asthma "triggers." Avoiding them is your first step toward feeling better. The most common asthma triggers are respiratory tract infections caused by viruses such as the flu, common cold, and other viruses. Other triggers are cold and dry air, mold, pets, dust, grasses, pollen, cockroaches, odors from chemicals, and smoke from cigarettes.

Asthma triggers
It is important to know what things make your asthma worse. These are called asthma triggers. Avoiding them is your first step toward feeling better. The most common asthma triggers are respiratory tract infections caused by viruses, such as the flu and common cold. Other triggers are cold and dry air, mold, pets, dust, grasses, pollen, cockroaches, odors from chemicals, and smoke from cigarettes.
Last reviewed April 2, 2022 by Denis Hadjiliadis, MD, MHS, Paul F. Harron Jr. Associate Professor of Medicine, Pulmonary, Allergy, and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team..