Coughing is a sudden noisy expulsion of air from the lungs. It is a protective response that serves to clear the trachea, bronchi, and/or lungs of irritants and secretions, or to prevent aspiration of foreign materials into the lungs.

Symptom severities
Severe 37
Moderate 161
Mild 224
None 258
What patients with Lung Cancer report taking for the purpose of treating Cough
Patients
Amoxicillin 1
Gefitinib 1
No treatments 1
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