Nasal discharge

Excessive mucus or mucopurulent secretions from the nasal cavity, resulting from increased glandular secretion, mucosal inflammation, or impaired nasal drainage.

Causes

• Infections

  • Common cold

  • Influenza

  • Sinusitis

• Allergic rhinitis

  • Pollen

  • Pet dander

  • Dust mites

• Non-allergic rhinitis

  • Vasomotor rhinitis

  • Medication-related rhinitis

  • Hormonal changes

• Environmental and irritant causes

  • Tobacco smoke

  • Air pollution

  • Chemical irritants

  • Sudden exposure to cold air

  • Occupational irritants

• Structural and mechanical causes

  • Deviated nasal septum

  • Nasal polyps

  • Foreign body in the nasal cavity

  • Impaired sinus drainage

  • Anatomical abnormalities of the nasal passages

• Gastroesophageal reflux-related upper airway irritation