Asthma is a chronic condition where the airways become inflamed and narrow and start producing extra mucus. This causes symptoms like wheezing, shortness of breath, chest tightness, and coughing.
Altman. If thick mucus builds up, it can cause problems like postnasal drip, which, as we know, can trigger a cough. A chronic cough could be a sign of other health issues. For example ...
A pneumonia cough can have bloody mucus. A severe cough for any reason ... Diagnosis and management of chronic cough: Similarities and differences between children and adults.