Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/8/2025

Management of Persistent Chronic Rhinosinusitis

Diagnosis and Initial Management

  • The American Academy of Otolaryngology states that antibiotics should NOT be prescribed unless significant or persistent purulent nasal discharge is present on examination, as chronic sinusitis is primarily inflammatory rather than infectious 1
  • The patient meets diagnostic criteria for chronic rhinosinusitis based on symptoms persisting beyond 8 weeks, including nasal congestion, postnasal drainage, facial pressure, decreased sense of smell, and cough 2, 3
  • The European Position Paper on Rhinosinusitis found no additive effect of antihistamines over standard treatment in acute bacterial rhinosinusitis 4

Medical Management

  • The American Academy of Otolaryngology recommends initiating fluticasone propionate nasal spray 200 mcg daily as the most effective first-line treatment for chronic rhinosinusitis 1
  • Intranasal corticosteroids provide superior symptom relief by reducing inflammation and nasal congestion 1
  • Saline irrigation is highly effective as adjunctive therapy, improving mucous clearance, enhancing ciliary activity, and removing inflammatory mediators 1, 5
  • Normal saline is better tolerated than hypertonic saline with fewer side effects 5

Diagnostic Workup

  • CT imaging is essential when symptoms persist despite medical therapy to provide objective documentation of inflammation 5
  • Chronic rhinosinusitis requires abnormal findings on CT or MRI for definitive diagnosis 2, 3
  • The patient requires nasal endoscopy to evaluate for nasal polyps, purulent discharge, or anatomical abnormalities 5

Referral and Follow-Up

  • Refer to ENT specialist now rather than waiting for treatment failure, given recurrent symptoms despite two courses of antibiotics 2, 3, 1
  • Reassess symptoms after 4 weeks of intranasal corticosteroids and saline irrigation 5
  • If minimal or no improvement after 4 weeks, the CT scan and ENT evaluation will guide next steps including possible functional endoscopic sinus surgery 2, 3

REFERENCES

1

Treatment for Chronic Sinus Drainage [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

5

Management of Chronic Rhinosinusitis with Decreased Sense of Smell [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025