Mar 30, · Coughing might sometimes be uncomfortable, but it actually serves a useful purpose. When you cough, you bring up mucus and foreign material from your airways that can irritate your lungs. Coughing. Jan 23, · A chronic cough is when a cough lasts longer than 8 weeks in adults or 4 weeks in children. Common causes include asthma, allergies, gastroesophageal reflux disease (GERD), or bronchitis. Less Author: Rachel Nall, MSN, CRNA.
Dec 19, · In adults, whooping cough can be a cause of chronic cough. Chronic cough in children is uncommon. Foreign material obstructing the airways of the lungs, asthma, and allergies need to be evaluated by a pediatrician.