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Sinusitis & Sinus Infections
Understanding sinus inflammation and when antibiotics are needed.
3 min read
Updated 10 January 2026
Doctor Reviewed
AHPRA Verified
Medical Information Disclaimer
This article is for general information only and does not constitute medical advice. All treatment decisions are made by an AHPRA-registered doctor after reviewing your individual circumstances.
Sinusitis is inflammation of the sinuses — air-filled spaces in your face. Most sinusitis starts with a viral infection that causes swelling, trapping mucus and creating pressure.
Symptoms
- Facial pain or pressure (cheeks, forehead, eyes)
- Blocked or stuffy nose
- Thick, discoloured nasal discharge
- Reduced sense of smell
- Post-nasal drip
- Headache
Facial pain that worsens when leaning forward is a classic sign of sinusitis.
Home Remedies
- Saline nasal rinse
- Steam inhalation
- Stay hydrated
- Warm compresses on face
- Rest
- Sleep with head elevated
Do You Need Antibiotics?
Most sinusitis is viral and doesn't need antibiotics. Signs suggesting bacterial infection include symptoms lasting more than 10 days, severe symptoms, or symptoms that improve then worsen.
Don't use decongestant nasal sprays for more than 3 days — this can cause rebound congestion.
When to See a Doctor
- Symptoms lasting more than 10 days
- High fever
- Severe headache or facial pain
- Vision changes or swelling around eyes
- Recurrent sinus infections
Frequently Asked Questions
How long does sinusitis last?
Acute sinusitis typically lasts 2-4 weeks. Most improve within 10 days.
Is green mucus always infection?
No. Green or yellow mucus is common with both viral and bacterial infections.
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