Asthma - MayoClinic.com
(click above for MayoClinic.com)
By Mayo Clinic staff
When you have asthma, your airways narrow and swell. They produce extra mucus, and breathing becomes difficult. The most common asthma signs and symptoms are coughing, wheezing and shortness of breath. For some people, asthma symptoms are a minor nuisance. For others, they're a major problem that interferes with daily activities. If you have severe asthma, you may be at risk of a life-threatening asthma attack.
Asthma can't be cured, but its symptoms can be controlled. Treatments include taking steps to avoid your particular asthma triggers, using long-term control medications to prevent flare-ups and using a quick-relief inhaler to control symptoms once they start. Because asthma changes over time, you'll work with your doctor to track your signs and symptoms and adjust treatment as needed.
Read more at: http://www.mayoclinic.com/health/asthma/DS00021