Is there a homeopathic nasal spray that reliably reduces the risk of recurrent acute rhinosinusitis in adults?

Homeopathic Nasal Sprays for Recurrent Sinus Infections

No, there is no reliable evidence that homeopathic nasal sprays reduce the risk of recurrent acute rhinosinusitis in adults, and major guidelines explicitly state that homeopathic products have not been shown to provide significant benefit for preventing sinus infection recurrence. 1

What the Guidelines Say About Homeopathy

The European Position Paper on Rhinosinusitis and Nasal Polyps 2020—the most authoritative guideline on this topic—directly addresses homeopathic products and concludes:

• A systematic review of eight randomized controlled trials involving 1,562 children found no significant benefit of homeopathic products compared to placebo on infection recurrence or cure rates 1
• The guidelines explicitly list homeopathy under "Medication with no proven benefits in the treatment of ARS" 1
• No similar high-quality studies exist for adults with respiratory tract infections 1

The One Exception (But Not for Prevention)

There is one study showing a homeopathic product (Sinfrontal) significantly reduced symptoms in acute post-viral rhinosinusitis compared to placebo, with radiographic improvement 1, 2. However, this study:

• Evaluated treatment of active infection, not prevention of recurrence 2
• Was conducted at six sites in Ukraine with 113 patients 2
• Showed symptom reduction over 7-22 days but does not address your question about preventing future infections 2

What Actually Works for Prevention

Instead of homeopathic sprays, evidence-based options for reducing recurrent sinus infections include:

Saline Nasal Irrigation (High-Volume)

• The American Academy of Otolaryngology-Head and Neck Surgery recommends daily high-volume saline nasal irrigation for secondary prevention of chronic rhinosinusitis 3
• Improves mucociliary function, decreases nasal mucosal edema, and mechanically rinses infectious debris and allergens 3
• More effective than saline spray in expelling secretions and improving quality of life 3

Probiotics

• A 2015 systematic review found probiotics better than placebo in preventing acute respiratory infections, though evidence quality was low 1
• Different strains may have varying effectiveness 1

Herbal Medicines (Not Homeopathic)

• Products like BNO1016 (Sinupret), Cineole, and Myrtol have shown significant impact on symptoms of common cold and post-viral acute rhinosinusitis without important adverse events 1
• These are phytotherapeutic (plant-based) medicines, not homeopathic preparations 1

Critical Distinction: Homeopathy vs. Herbal Medicine

Do not confuse homeopathic products with herbal medicines—they are fundamentally different:

• Homeopathic products: Highly diluted substances based on "like cures like" principle; no proven benefit for prevention 1
• Herbal medicines: Concentrated plant extracts with pharmacologically active compounds; some have demonstrated efficacy 1

The Bottom Line

For preventing recurrent sinus infections, skip homeopathic nasal sprays and use daily high-volume saline nasal irrigation instead 3. If you have true recurrent acute bacterial sinusitis (uncommon in healthy adults), you need medical evaluation to identify underlying causes such as anatomic abnormalities, allergies, or immunodeficiency 1.