sinus specialist tests overview

Overview

Sinus specialist tests are medical procedures used by ear, nose, and throat (ENT) doctors to diagnose problems with your sinuses. Sinuses are air-filled spaces in the bones around your nose. Tests help find the cause of symptoms like congestion, facial pain, or recurring infections.

Yes, sinus issues are very common – millions of people experience sinusitis (inflammation of the sinuses) each year. Many people will need tests to find the cause.

Sinus problems can affect people of all ages, but they are more common in adults. Children can also have sinusitis, though it sometimes looks like a long-lasting cold. Older adults may have more persistent symptoms.

Symptoms

Common symptoms

• Nasal congestion or stuffiness
• Pain or pressure around your eyes, cheeks, forehead
• Headache that worsens when you lean forward
• Thick nasal discharge (yellow or green)
• Reduced sense of smell
• Cough that gets worse at night

Symptoms in children

• Cold-like symptoms that last more than 10 days
• Irritability or fussiness
• Ear pain or pulling at ears
• Bad breath
• Low fever

Symptoms in older adults

• Persistent nasal congestion
• Reduced sense of smell (may affect appetite)
• Cough that lingers
• Fatigue and general discomfort
• Increased risk of complications like infection spreading

Causes

Main causes

• Viral infections (like a cold)
• Bacterial infections
• Allergies (hay fever, dust mites, mold)
• Structural problems like a deviated septum or nasal polyps (non-cancerous growths)
• Fungal infections (less common, often in people with weakened immune systems)

Risk factors

• Smoking or exposure to secondhand smoke
• Having asthma or allergies
• A weakened immune system (from diabetes, HIV, or medications)
• Frequent colds or other respiratory infections
• Swimming or diving (rarely)

When to see a doctor

See a doctor urgently if:

• If you have any emergency symptoms listed above – especially vision changes or severe headache with fever
• If you have a high fever that does not go down with care

Book a routine appointment if:

• If you have sinus symptoms lasting more than 10 days without improving
• If you have recurring sinus infections (more than 3–4 per year)
• If your sense of smell does not return after a cold
• If you have chronic sinus problems that affect your daily life

Diagnosis

Your doctor will start by asking about your symptoms and doing a physical exam. They may look inside your nose with a light (nasal speculum). If sinus issues are frequent or severe, they may refer you to an ear, nose, and throat (ENT) specialist for more detailed tests.

Tests that may be done

• Nasal endoscopy: A thin, flexible tube with a camera is gently placed into your nose to see the sinus openings and look for swelling, polyps, or other problems.
• CT scan (computed tomography): A series of X-rays creates detailed pictures of your sinuses. This is often used to see blockages, infections, or structural issues.
• Allergy testing: Skin or blood tests can check if allergies are triggering your sinus problems.
• Nasal swab: A cotton swab is used to collect a sample of mucus from inside your nose to test for bacteria, fungi, or viruses.
• Nasal cytology: A sample of nasal lining cells is examined under a microscope to check for signs of inflammation or infection.
• MRI (magnetic resonance imaging): Sometimes used if a tumor or fungal infection is suspected, though CT is more common for sinuses.
• Sinus culture: Similar to a nasal swab, but a sample is taken from deeper in the sinus during endoscopy.

What to expect at your appointment

Most tests are done in your doctor's clinic or a hospital radiology department. Nasal endoscopy may feel a little uncomfortable but is not painful – a numbing spray is often used. CT scans are painless and quick (just lying still). Allergy testing involves small needles or blood draw. Your doctor will explain each test and results usually come back in a few days to a week.

Treatment

Treatment for sinus problems depends on the cause. For viral infections, you often just need rest and home care. For bacterial infections, antibiotics may be prescribed. If allergies are the culprit, allergy medicines and avoiding triggers help. For structural problems like polyps, steroid sprays or surgery might be needed.

Self-care at home

• Use a saline (salt water) nasal rinse or spray to keep your nasal passages moist and clear mucus.
• Breathe in steam from a bowl of hot water (carefully) or take a warm shower.
• Drink plenty of fluids to thin mucus.
• Apply a warm, damp cloth to your face to ease pain.
• Rest and get enough sleep.
• Use a humidifier in your room, especially in dry climates.

Medical treatments

Your doctor may recommend over-the-counter or prescription treatments. These include nasal corticosteroid sprays to reduce inflammation, antihistamines for allergies, decongestants for short-term relief of congestion, and for bacterial infections, a course of antibiotics. Always follow your doctor's advice on which medicines are right for you. Do not use decongestant sprays for more than 3 days as they can make congestion worse.

When is surgery considered?

Surgery may be considered if medications and home care do not help after several months, or if there are structural problems like nasal polyps (non-cancerous growths), a severely deviated septum, or chronic sinusitis that does not respond to other treatments. Surgery is usually done through the nostrils (endoscopic sinus surgery) with no cuts on the face.

Living with this condition

Living with chronic sinus problems can be frustrating. Try to identify and avoid triggers like smoke, dust, or pollen. Keep your living space clean and use allergy-proof covers on pillows. Follow your doctor's plan and keep up with nasal rinses when needed.

Lifestyle tips

• Avoid smoking and secondhand smoke.
• Use a humidifier in dry environments.
• Manage allergies with medication or avoidance.
• Wash your hands often to prevent infections.
• Stay up to date on flu shots and other vaccines.

Diet and exercise

A healthy balanced diet rich in fruits and vegetables supports your immune system. Stay well-hydrated with water. Gentle exercise like walking can help reduce stress and improve overall well-being, but avoid vigorous activity if you have a fever or feel very unwell.

Mental health and emotional wellbeing

Chronic sinus issues can be draining and affect your mood, sleep, and concentration. It is normal to feel frustrated or down. Talk to your doctor if you feel anxious or depressed – they can offer support or refer you to a counselor.

Prevention

You can reduce your risk of sinus problems by avoiding infections and triggers. Wash your hands often, avoid close contact with people who have colds, and manage allergies with medication or avoidance. Using a saline rinse after exposure to allergens may help.

Vaccines

Getting the annual flu vaccine and the pneumococcal vaccine can help prevent some infections that might lead to sinusitis. Talk to your doctor about which vaccines are right for you.

Screening programmes

There is no routine screening for sinus problems. Testing is done based on symptoms and risk factors.

Complications

If left untreated

• Chronic sinusitis (inflammation lasting more than 12 weeks)
• Recurring infections
• Spread of infection to nearby areas like the eyes or brain (rare but serious)
• Nasal polyps may grow and block nasal passages
• In severe cases, infection can cause meningitis or a brain abscess (very rare)

Long-term outlook

For most people, sinus problems get better with proper treatment and home care. Even chronic sinusitis can often be managed well with medications, lifestyle changes, or surgery. Serious complications are very rare. With the right care, you can improve your symptoms and quality of life.

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