Cough is always due to a respiratory tract condition, somewhere between the nose & the depths of the lung. We divide it in half, into โ€œUpperโ€ and โ€œLowerโ€.

  • The Upper Respiratory Tract includes the nose, sinuses, throat, & trachea (windpipe).
  • The Lower Respiratory Tract means the lungs.
  • (See Diagrams — Anatomy of the Upper and Lower Respiratory Systems

For the clinician’s approach to diagnosing “Cough,” select either:

Acute Cough (lasting 2-3 weeks or less)

Chronic Cough (going on 4 weeks or more)

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