What are the benefits of an "inhaled corticosteroid"?

What are the benefits of an "inhaled corticosteroid"?

William Berger (Allergist and Immunologist) gives expert video advice on: How is asthma treated?; How important is it to identify my asthma triggers?; What side effects should I expect from my asthma medication? and more...

Inhaled corticosteroids have become, for physicians who treat asthma, the most important medication to not only control the asthma but many doctors believe that the use of inhaled corticosteroids can prevent the deterioration of asthma. In asthma, you have chronic inflammation and normal cells are replaced by inflammatory cells and normal tissue eventually could be replaced by connective tissue or scar tissue. It doesn't function the way normal respiratory tissue should function.