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  1. Acute sinusitis - Diagnosis and treatment - Mayo Clinic

  2. The 5 Best OTC Treatments for Treating Sinus Infections - GoodRx

  3. Should I Use A Nasal Spray For A Sinus Infection?

  4. Mayo Clinic Q and A: Sinusitis and treatment options

  5. 5 Best OTC Nasal Sprays - Healthline

  6. Acute sinusitis: Do over-the-counter treatments help?

  7. OTC Sinus Infection Drugs: Which Is Best? - Verywell Health