The airways that perform the function of transporting air to and from the lungs are termed bronchial tubes. The inflammation of the lining of these tubes results in the condition termed bronchitis. In this, the airways might swell and get filled with mucus, causing an excess cough with dense mucus. It may be acute or chronic, depending on the factor contributing to the condition. The coughing in the acute case might subside within 1-2 weeks, while in the case of chronic bronchitis, a strategic medical intervention is the ultimate requisite.