Coughs are usually defined as chesty (productive) or dry (unproductive). If you have a chesty cough, it’s because your lungs are producing more phlegm (mucus) than normal and you are coughing it up.
Also known as an unproductive cough as it doesn’t produce mucus, dry coughs can have a number of causes including hypersensitivity of nerves in the airway after an infection (known as post ...
Importantly, in adult patients with COPD, levocloperastine reduced the frequency and intensity of dry unproductive cough without adversely influencing the beneficial effects of underlying treatment.