Your airways suddenly narrow and swell. You may struggle for air, cough up mucus, or hear whistling when you breathe. It’s not clear why this happens to some people, but lots of things could trigger an attack, including pollen, dust, smoke, exercise, freezing air, a cold, and stress.
Your doctor can help you figure out what causes yours. They might prescribe medication for you to inhale during an attack to help you breathe more easily.
Pollen, dust, pet dander, and other things you breathe in can cause allergies. Sometimes the allergic reaction causes asthma. But it’s not always something in the air. It could start with something you touch, or some food you eat. Talk with your doctor about how best to manage your asthma and allergies. Check in when your symptoms change, too.