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Book a Telehealth Consultation →That familiar pressure across your cheeks, a blocked nose that won't shift, and tissue-thin patience by day eight. Most of us call it "sinusitis" — but how long is too long to wait it out, and at what point should a doctor actually take a look?
Sinusitis (inflammation of the sinuses) is one of the most common reasons Australians see a GP — and one of the most misjudged. Wait too little and you may take antibiotics you don't need. Wait too long and a treatable infection can turn serious. This guide walks you through the typical timeline, the "10-day rule", the warning signs that shouldn't wait, and exactly when to book in. You can also read our full guide to sinusitis treatment.
Typical duration
Most acute sinusitis improves within 7–10 days and settles fully within 2–3 weeks.
Usually viral
The vast majority of cases follow a cold or flu and get better without antibiotics.
The 10-day rule
Symptoms lasting 10+ days with no improvement — or worsening after getting better — warrant a GP review.
Red flags
Eye swelling, vision changes or severe headache need urgent medical care — not more waiting.
What is sinusitis, exactly?
Your sinuses are air-filled cavities behind your cheeks, forehead and eyes. When a virus (or less often, bacteria or allergens) causes the lining to swell, mucus can't drain properly. The result: blockage, facial pressure, a headache that shifts when you lean forward, and post-nasal drip that irritates your throat and cough.
Sinusitis is closely linked to colds and flu — most cases start that way. Our guide to cold, flu and COVID-19 treatment explains how those illnesses overlap and evolve.
How long is too long? The timeline explained
| Stage | What's happening | What to do |
|---|---|---|
| Days 1–7 | Viral cold-style symptoms: runny nose, mild facial pressure, sore throat, fatigue. Often worst around days 3–5. | Self-care. This is normal — most cases are viral and start improving here. |
| Days 7–10 | Symptoms plateau or slowly ease. Some congestion and fatigue can linger. | Keep going with self-care. Watch for the "double sickening" pattern below. |
| Day 10+ | Symptoms unchanged or worsening, especially thick discoloured discharge with facial pain. | Time to see a doctor. Antibiotics may be considered if a bacterial infection is likely. |
| Weeks 2–3 | Gradual recovery — a lingering mild cough or congestion is common even after the infection clears. | Fine if improving. If not improving at all, book a review. |
| 12+ weeks | Symptoms persisting this long suggests chronic sinusitis. | See a GP. You may need a specialist (ENT) referral and imaging. |
⚠️ Watch for "double sickening"
The clearest signal that bacteria may be involved isn't the day count alone — it's when you start getting better, then take a sharp turn for the worse. Feeling improved around day 5, then hit again with worse facial pain, fever and thick discharge by day 7–8? That pattern ("double worsening") is a reason to see a doctor sooner rather than later. The same applies if symptoms begin severely — a fever of 39°C or higher with pus-like discharge for 3–4 days.
Sinusitis, cold or allergies? How to tell the difference
| Common cold | Acute sinusitis | Allergic rhinitis | Chronic sinusitis | |
|---|---|---|---|---|
| Duration | 7–10 days | Up to 4 weeks | As long as exposure continues (weeks to months) | 12+ weeks |
| Facial pain/pressure | Mild or absent | Common — worse bending forward | Rare | Dull, ongoing pressure |
| Discharge | Clear, then thicker | Thick, often discoloured | Clear, watery | Thick, ongoing |
| Itchy eyes/sneezing | No | No | Yes — hallmark signs | Sometimes |
| Fever | Sometimes, early | Possible in bacterial cases | No | No |
| Response to antihistamines | Minimal | Minimal | Good | Partial |
What to do — step by step
Support recovery in the first week
Most cases need time, not medication. Try saline nasal rinses (the single most effective home treatment), steam or a warm shower to loosen congestion, plenty of fluids, and paracetamol or ibuprofen for pain — following the pack directions. If you use a decongestant spray, limit it to 3–5 days; longer use can make congestion rebound and worse.
See a doctor if symptoms pass the 10-day mark
If you've had no meaningful improvement after 10 days, symptoms are severe from the start, or you're experiencing "double sickening", it's time for a review. A GP can assess whether a bacterial infection is likely, discuss whether antibiotics are appropriate, and rule out complications. You don't need to sit in a waiting room — seeing a GP online works well for sinusitis, with telehealth consultations from $49.
Follow up if things don't improve — or keep coming back
If you've been treated but aren't improving, or you're getting four or more sinus infections a year, ask your GP about further investigation. Recurrent or long-lasting symptoms may need an ENT specialist referral or imaging. NewTeleDoc can provide specialist referrals online for $25 when clinically appropriate.
When sinusitis becomes an emergency
🚨 Call 000 or go to your nearest emergency department if you have:
- Swelling, redness or bulging around the eye, or difficulty moving the eye
- Changes in vision — blurring, double vision or loss of vision
- A severe, one-sided headache or eye pain that's unlike anything you've had before
- Confusion, drowsiness or difficulty waking
- A high fever with a stiff neck, sensitivity to light, or a severe headache — possible signs of meningitis
- Symptoms that are deteriorating rapidly, at any stage of illness
These can signal the infection is spreading beyond the sinuses — to the eye socket, bone or brain — and need immediate, in-person care. Don't wait for a telehealth appointment with any of these signs.
Can an online doctor treat sinusitis?
Yes — in most cases. Sinusitis is diagnosed based on your symptoms and how long they've lasted, which suits a video or phone consultation well. An AHPRA-registered NewTeleDoc GP can:
- Assess your symptoms and duration, and identify red flags that need in-person care
- Prescribe antibiotics or other medication where a bacterial infection is likely — scripts are sent digitally to your phone or pharmacy (more on online prescriptions)
- Provide a medical certificate for work or study if you're too unwell to attend, from $15
- Arrange specialist (ENT) or imaging referrals for recurrent or chronic symptoms — $25 per referral
If your symptoms suggest something needing a physical examination, NewTeleDoc will tell you plainly and point you to in-person care. Our guide on telehealth vs seeing your GP in person covers where each option fits, and what telehealth consultations cost if you're budgeting for the visit.
Frequently asked questions
How long is too long for sinusitis?
See a doctor if symptoms have lasted 10 days or more without any improvement, if you improve and then worsen again, or if symptoms start severely (high fever with thick discharge). Symptoms lasting 12 weeks or more suggest chronic sinusitis and always warrant medical assessment.
Can sinusitis go away without antibiotics?
Yes — most cases are viral and resolve within 2–3 weeks with self-care like saline rinses, steam and pain relief. Antibiotics don't help viral infections and can cause side effects. That said, a doctor may prescribe them when symptoms pass 10 days without improvement or follow the "double sickening" pattern, as a bacterial infection becomes more likely.
How do I know if it's sinusitis or just a cold?
A cold typically peaks around days 3–5 and fades within 7–10 days. Sinusitis is more likely if you have marked facial pressure or pain (worse when bending forward), thick discoloured discharge, symptoms lasting beyond 10 days, or a second wave of worsening symptoms after initial improvement.
Can an online doctor prescribe antibiotics for sinusitis?
Yes, when clinically appropriate. A telehealth GP will assess your symptoms, duration and severity first. Antibiotics are generally reserved for likely bacterial cases — for example, symptoms beyond 10 days without improvement, severe onset, or worsening after initial recovery. If your case is viral, the doctor will explain why antibiotics aren't the answer and what will actually help.
When should I go to hospital for sinusitis?
Immediately — by calling 000 or attending an emergency department — if you have swelling or redness around the eye, vision changes, severe one-sided headache or eye pain, confusion or drowsiness, a high fever with a stiff neck, or rapidly deteriorating symptoms. These suggest the infection is spreading and need urgent in-person treatment.
Been blocked up for more than 10 days?
Don't wait it out a second week. Book an online GP consultation from $49 — judgment-free advice, scripts if you need them, and a medical certificate if you're off work.
Book Your Online GP Visit →This article provides general information only and is not a substitute for professional medical advice, diagnosis or treatment. Always seek the guidance of a qualified health professional with any questions about your health or a medical condition. If you are experiencing a medical emergency, call 000 or attend your nearest emergency department.