When asthma symptoms suddenly occur, it's called an asthma attack. It's also called an acute asthma episode, flare-up, or exacerbation. Attacks can be brief (about an hour) or last for several days. They may be seasonal (similar to hay fever) or occur during any season.
When you have an asthma attack, airflow to the lungs is reduced.
During an asthma attack:
Asthma symptoms may start suddenly or happen up to several hours after you have been exposed to triggers, such as tobacco smoke or animal dander. In some cases, symptoms may not occur until 4 to 12 hours after contact. Although severe attacks may seem to occur suddenly, they usually occur after several days of increasing symptoms.
Your doctor will ask questions about your symptoms, when they occur, and your past health. You will have a physical exam. A breathing test may be done to find out how well your lungs work.
Quick-relief medicines are given to relax the airways so you can breathe easier. Corticosteroid medicines are used to reduce inflammation. They may be inhaled or given as pills or a shot. Some asthma attacks may need treatment in the hospital. You may get extra oxygen or help with breathing if needed.
Call 911 anytime you think you may need emergency care. For example, call if:
Call your doctor now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor if:
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