What is sinusitis? Can't it be cured with over-the-counter medication?

Table of Contents

1. Mechanism of Sinuses and Mucus Accumulation

2. Types and Symptoms of Sinusitis

3. What Over-the-Counter Medications Can and Cannot Do

4. Timing for Medical Consultation and Diagnosis Process

5. Treatment at Medical Facilities (Medication and Surgery)

6. Self-Care and Lifestyle Habits to Prevent Recurrence

7. Q&A: Frequently Asked Questions

8. Conclusion
   
   

1. Mechanism of Sinuses and Mucus Accumulation

On either side of the nose, there are four pairs of cavities called the frontal sinuses, ethmoid sinuses, maxillary sinuses, and sphenoid sinuses. These cavities expel mucus towards the throat through ciliary movement on the mucosal surface. When the mucosa swells due to a cold or hay fever, the airways (natural openings) become narrow, causing mucus and pus to lose their way and accumulate. Particularly, the maxillary sinuses and ethmoid sinuses are structural examples where pus tends to accumulate easily.jstage.jst.go.jp

2. Types and Symptoms of Sinusitis

3. What Over-the-Counter Medications Can and Cannot Do

What They Can Do

• Antipyretic analgesics to relieve pain and fever

• Vasoconstrictive nasal sprays to temporarily relieve nasal congestion (within 3 days)

• Support mucus discharge with Kampo (Kakkonto-ka-senkyushini, Shini-seihai-to)nagoya-hanamaru-jibika.jp
  
  
  

What They Cannot Do

• Cure bacterial infections (antibiotics are necessary)

• Reduce chronic mucosal thickening and nasal polyps (local steroids and surgery are central)

• Physically improve ventilation disorders of the nasal cavity and sinuses

Long-term use of over-the-counter nasal sprays has been reported to cause "medication-induced rhinitis," which can actually swell the mucosa.

4. Timing for Consultation and Diagnostic Flow

• Four Consultation Guidelines: ① Yellow-green nasal discharge for more than 4 days ② Fever over 38°C ③ Pain in cheeks, teeth, or behind the eyes ④ Reduced sense of smell for more than 1 week.

• In otolaryngology, purulent secretions are confirmed using a fiberoptic endoscope, and CT scans are used to evaluate the degree of blockage. Depending on the severity classification, medication or ESS (endoscopic sinus surgery) is selected.jstage.jst.go.jp

5. Treatment at Medical Institutions

1. Pharmacotherapy

   • Antibiotics: Amoxicillin ± clavulanic acid as the first choice. Administer for 5 to 10 days considering resistance risk.

   • Nasal steroids: Suppress inflammation and restore ciliary function.

   • Mucolytics and expectorants: Reduce the viscosity of pus and promote discharge.
     
     

2. Procedures

   • Drainage through nebulizer inhalation and maxillary sinus puncture lavage.
     
     

3. Surgery

   • ESS to expand the site of infection is performed when there is chronicity or eosinophilic sinusitis with drug resistance. Average hospitalization is 4 to 7 days, with a recurrence rate of about 10%.jstage.jst.go.jpmayoclinic.org

6. Self-care to Prevent Recurrence

• Nasal irrigation: 1 to 2 times a day with saline at around 37°C.

• Humidification: Maintain indoor humidity at 50-60%, use a humidifier during sleep to prevent mucosal dryness.

• Sleep and hydration: Ciliary movement decreases with lack of sleep and dehydration.

• Allergy measures: Reduce exposure to pollen and house dust to suppress mucosal inflammation.verywellhealth.comverywellhealth.com

7. Q&A

Q. Does blowing your nose hard make it heal faster?
A. Excessive nose blowing puts pressure on the Eustachian tube and can cause otitis media, so it is not recommended. The basic approach is to blow your nose gently and frequently.

Q. What is eosinophilic sinusitis?
A. It is primarily an allergic inflammation characterized by nasal polyps and olfactory disorders. The use of oral steroids and biologics has recently been expanded.

8. Summary

The core of treating sinusitis is breaking the vicious cycle of "worsening sinus ventilation → stagnation of pus → worsening inflammation." Over-the-counter medications provide temporary relief for local symptoms such as pain and nasal congestion,but have limited power to stop bacterial infections or chronic conditions.Assess the duration and severity of symptoms and visit an ENT specialist early. The combination of appropriate antibiotics, nasal steroid sprays, drainage procedures, and self-care is the shortest route to preventing recurrence and maintaining quality of life.

Reference Articles List

• Japan Rhinologic Society "Acute Rhinosinusitis Treatment Guidelines"jstage.jst.go.jp

• Japanese Society of Otorhinolaryngology Treatment Guidelines List Pagejibika.or.jp

• Nagoya Hanamaru ENT Clinic Column "Recommended Over-the-Counter Medicines for Sinusitis and Postnasal Drip"nagoya-hanamaru-jibika.jp

• Mayo Clinic “Acute sinusitis: Diagnosis & treatment”mayoclinic.org

• Verywell Health “10 Best Home Remedies for a Sinus Infection”verywellhealth.com

• Verywell Health “Sinus Pain Treatment”verywellhealth.com