Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs AsthmaUpdated: 2017-06-13OverviewIn asthma, the airways narrow and swell and produce extra mucus.SymptomsThis can make breathing difficult and trigger coughing, wheezing, and shortness of breath. Asthma can be minor or interfere with daily activities. In some cases, it may lead to a life-threatening attack.TreatmentsThe condition usually can be controlled with medications. © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use