Classification of cough
Not all coughs are the same.
If you have a cough, keep track of the
following cough characteristics:7
- Duration
- Types
- Features of the cough
- Accompanying symptoms

Acute Cough8 | Chronic Cough |
---|---|
Duration: Less than 3 weeks |
Duration: More than 8 weeks |
Causes: Mostly common cold Recovery: Starts to improve by the 3rd to 5th day |
Causes8: Inflammation of the membranes inside the nose or sinuses Poorly controlled asthma Smoking Acid reflux |
Dry cough (non-productive) | Wet chesty (productive) cough |
---|---|
Does not produce phlegm7 Develops during the first days of upper respiratory tract infection5 Can be caused by allergies11 |
Happens later in the course of upper respiratory tract infection5 May be related to inflammation spreading to lower airway and triggering mucus production5 Mucus may come back from the back of the throat, nose, sinuses or up from your lungs11 |
Acute viral upper respiratory illness such as
influenza can cause seasonal coughs.
Seasonal influenza activity usually peaks at
the turn of the year or around December.9
This type of cough attacks mostly at
night.7 Chronic nighttime cough can have
many causes including asthma, upper
airways cough syndrome and acid reflux
disease.11