What’s an asthma attack?
When you breathe normally, muscles around your airways are relaxed, letting air move easily. During an asthma attack, three things can happen:
Bronchospasm: The muscles around the airways constrict (tighten). When they tighten, it makes the airways narrow. Air cannot flow freely through constricted airways.
Inflammation: The airway linings become swollen. Swollen airways don’t let as much air in or out of the lungs.
Mucus production: During the attack, your body creates more mucus. This thick mucus clogs airways.