Aetiology
PNDS can be caused by a number of different conditions which disturbs the normal production of mucus from the nasal and sinus cavities (1,2). These include:
- allergic rhinitis
- enlarged adenoids
- sinusitis/gastroesophageal reflux
- polyps (cystic fibrosis)
- mucociliary dysfunction
- anatomical anomalies
- smoking and exposure to toxins
Reference
- Pratter M. Chronic upper airway cough syndrome secondary to rhinosinus diseases (previously referred to as postnasal drip syndrome): ACCP evidence-based clinical practice guidelines. Chest. 2006;129(suppl 1):63S-71S.
- European Respiratory Society. ERS guidelines on the diagnosis and treatment of chronic cough in adults and children. 2020 [internet publication].
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