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Professional
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MSD Manual
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
EMERGENCIES
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COMMENTARY
ABOUT US
HEALTH TOPICS
HEALTHY LIVING
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Quick Facts: Lung and Airway Disorders
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Asthma
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Asthma
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Asthma
What is asthma?
What causes asthma?
What are the symptoms of an asthma attack?
How can doctors tell if I have asthma?
How do doctors treat asthma?
Metered-dose inhalers
Nebulizers
How do you prevent asthma?