Asthma FAQs Topic Guide
Asthma Medications Asthma is a disease that affects the breathing passages of the lungs (bronchi and bronchioles). Asthma is caused by chronic (ongoing, long-term) inflammation of these passages.
Expert Views and News
Asthma and Allergy Resources
- Symptoms of a Severe Allergic Reaction
- Breast Cancer Treatment Options
- Is Your Body Ready for Pregnancy?