Asthma & Allergies Treatment and Symptoms
Asthma is an immunological disease which causes difficulty in breathing. It is a form of type II hypersensitivity in which the bronchioles in the lungs are narrowed by inflammation and spasm of the lining of the airway wall. A person with asthma may experience wheezing, shortness of breath and poor exercise tolerance.
- Asthma & Allergies (Centers for Disease Control and Prevention)