sinus infection result meanings for patients

Overview

A sinus infection, also called sinusitis, is swelling or inflammation of the lining of your sinuses. Sinuses are air-filled spaces in the bones around your nose. When they become blocked and fill with fluid, germs can grow and cause an infection. Most sinus infections are caused by viruses, not bacteria, and often get better on their own.

Yes, sinus infections are very common. Many people have at least one episode in their lifetime.

Sinus infections can affect people of all ages, but they are more common in adults. People with allergies, asthma, or a weakened immune system are at higher risk.

Symptoms

Common symptoms

• Facial pain or pressure, especially around your nose, eyes, or forehead
• Nasal congestion or stuffiness
• Thick yellow or green nasal discharge
• Headache
• Reduced sense of smell
• Cough, often worse at night
• Fever
• Bad breath

Symptoms in children

• Cold-like symptoms that last more than 10 days
• Irritability or fussiness
• Cough during the day or night
• Low-grade fever
• Ear pain or pulling at ears

Symptoms in older adults

• Same as common symptoms but may be less noticeable
• Confusion or change in mental status
• Cough or congestion that does not go away
• Fatigue

Causes

Main causes

• Viral infections – most often from a common cold
• Bacterial infections – less common, can sometimes follow a viral infection
• Fungal infections – rare, usually in people with very weak immune systems

Risk factors

• Allergies (hay fever or allergic rhinitis)
• Asthma
• Nasal polyps (small growths inside the nose)
• Deviated septum (a crooked wall inside the nose)
• Smoking or exposure to secondhand smoke
• Weakened immune system from illness or medication
• A dental infection that spreads to the sinuses

When to see a doctor

See a doctor urgently if:

• If you have any of the emergency symptoms listed above, call your local emergency number immediately.
• If your symptoms are severe or you have a high fever that does not come down with over-the-counter medicine.
• If you have a weakened immune system and develop sinus symptoms.

Book a routine appointment if:

• If your symptoms last more than 10 days without getting better.
• If you get sinus infections often (several times a year).
• If over-the-counter treatments like pain relievers or nasal rinses do not help.

Diagnosis

Your doctor will ask about your symptoms and examine you. They will look inside your nose with a small light or a scope. In most cases, no special tests are needed. Sometimes they may gently press on your face to check for tenderness.

Tests that may be done

• Physical exam of your nose, face, and throat
• Nasal endoscopy – a thin, flexible tube with a camera is inserted into your nose to see inside your sinuses
• Imaging tests like a CT scan – only if sinusitis is long-lasting or complicated, or if surgery is being considered

What to expect at your appointment

The doctor will check if you have sinusitis and whether it is more likely viral or bacterial. They may ask about your allergies and any previous sinus problems. Usually, you will not need any scans or lab tests. You will get advice on how to manage your symptoms at home.

Treatment

The goal of treatment is to relieve your symptoms and help your sinuses drain. Because most sinus infections are viral, antibiotics do not help and should not be used. Even bacterial infections often clear up on their own. Home care is the first and most important step.

Self-care at home

• Drink plenty of fluids like water, broth, or tea to thin the mucus.
• Rest and sleep with your head elevated on pillows to help drainage.
• Apply warm compresses to your face to ease pain.
• Use a saline (salt water) nasal spray or rinse to clear your nose.
• Inhale steam from a bowl of hot water (carefully) or take a hot shower.
• Avoid smoke, strong fumes, and dry air.

Medical treatments

If symptoms persist, your doctor may suggest using a steroid nasal spray to reduce inflammation, a decongestant spray (for a short time only, as it can cause rebound congestion), or pain relievers such as paracetamol or ibuprofen (follow the instructions on the label). Antibiotics are only prescribed if your doctor strongly suspects a bacterial infection, and they will choose the most appropriate type and dose for your situation.

When is surgery considered?

Surgery is rarely needed and is usually only considered for chronic sinusitis that does not improve with other treatments, or if you have nasal polyps or a structural problem inside the nose that blocks drainage.

Living with this condition

Most people can manage sinus infections well with simple home care. If you have chronic sinusitis, you may need to follow a daily routine to keep your sinuses clear and prevent flare-ups.

Lifestyle tips

• Use a humidifier to keep the air moist, especially in dry indoor environments.
• Avoid things that trigger your allergies, such as dust, pollen, and smoke.
• Wash your hands often to reduce your risk of catching colds.
• Consider using a saline rinse regularly, especially if you have chronic sinusitis.

Diet and exercise

Eat a balanced diet with plenty of fruits and vegetables to support your immune system. Staying active can help your overall health, but rest when you are sick. Drink enough fluids to keep your mucus thin.

Mental health and emotional wellbeing

Frequent or long-lasting sinus infections can be frustrating and may affect your mood. The pain and congestion can disrupt sleep and make daily activities harder. If you feel down, anxious, or overwhelmed, talk to your doctor. You are not alone, and support is available.

Prevention

You cannot always prevent sinus infections, but you can lower your risk. Wash your hands often, avoid close contact with people who have colds, and keep your allergies under control. Staying away from smoke and managing your asthma can also help.

Vaccines

Getting a flu shot each year may help prevent the flu, which can lead to sinusitis. Ask your doctor if a pneumococcal (pneumonia) vaccine is recommended for you.

Screening programmes

There is no routine screening for sinus infections. However, if you have frequent sinusitis, your doctor may check for underlying causes like allergies or a deviated septum.

Complications

If left untreated

• Spread of infection to the bones around the sinus (osteomyelitis) – rare
• An eye infection or abscess that could affect vision – rare
• Meningitis (infection of the lining of the brain and spinal cord) – very rare
• A blood clot in a sinus vein (cavernous sinus thrombosis) – very rare

Long-term outlook

The outlook for sinus infections is generally very good. Most people recover fully with simple home care or basic medical treatment. Even if you have chronic sinusitis, modern treatments can help control your symptoms and improve your quality of life.

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