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Asthma
Asthma interferes with normal breathing by narrowing the airways that are within the lungs and that lead to the lungs. This can happen when the muscles around the airways tighten, when there is inflammation and swelling of the airway’s lining, or when extra mucus is produced. More than 15 million Americans have asthma, including more than 6 million children.
Causes
Symptoms
Treatment
Peak-Flow Meters
Medications
Asthma Action Plan
Self-Care
Special Concerns for Children
Related topics
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What to do About Asthma
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| Mild shortness of breath, intermittent coughing, and/or wheezing |
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| Mild to moderate shortness of breath or wheezing; symptoms improved but not gone after 24 to 48 hours |
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| Need to use inhaler more than prescribed |
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| Significant wheezing or coughing, persistent chest tightness, peak-flow rate less than 50 percent of personal best |
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| Severe shortness of breath, gasping for air, difficulty speaking |
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Resources
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