Asthma is a chronic lung disease that lasts a long time. Airways are inflamed. That is, airway linings are swollen. Airways narrow and breathing becomes hard to do.
Airways are super sensitive.
They react to many things, such as cigarette smoke, pollen, or cold air. Coughing, wheezing, tight chest, difficult breathing, or an asthma episode may result. Not all people with asthma wheeze. For some, coughing may be the only symptoms of asthma. Coughing often occurs during the night or after the exercise.