Table 2 Classification of extrapulmonary causes of cough
Acute (≤8 weeks)Chronic (>8 weeks)
Diseases of the upper airwaysDiseases of the upper airways
 Infectious disease of the upper airways, mostly viral infection (common cold) Chronic rhinitis, sinusitis, pharyngitis and laryngitis
 Allergic disease Vocal cord dysfunction
Cardiac disease with acute pulmonary congestion Obstructive sleep apnoea?
Gastro-oesophageal reflux disease
Drug-induced cough
 ACE inhibitors
Cardiac diseases
 Any including pulmonary congestion
  • ACE: angiotensin-converting enzyme.