screening for sinus infection

Overview

A sinus infection (also called sinusitis) is when the air-filled spaces inside your face, called sinuses, become swollen and inflamed. This can block mucus and lead to pressure, pain, and a stuffy nose. Most sinus infections are caused by viruses and get better on their own.

Yes, sinus infections are very common. Millions of people get them every year, and many cases are treated at home or by a family doctor.

Sinusitis can affect people of all ages, but it is more common in adults. People with allergies, asthma, a weakened immune system, or structural issues in the nose have a higher risk.

Symptoms

Common symptoms

• Facial pain or pressure, especially around the forehead, eyes, or cheeks
• Nasal congestion or a stuffy nose
• Thick, yellow or green nasal discharge
• Reduced sense of smell or taste
• Cough that may get worse at night
• Headache
• Bad breath

Symptoms in children

• Runny or stuffy nose that lasts more than 10 days
• Nasal mucus that is thick and colored
• Cough that continues day or night
• Irritability or fussiness
• Swelling around the eyes
• Fever

Symptoms in older adults

• Nasal congestion and discharge
• Facial pressure or headache
• Cough
• Confusion or unusual tiredness in some cases
• Less typical symptoms, so it may be overlooked

Causes

Main causes

• Viral infections, such as the common cold
• Bacterial infections that develop after a viral sinus infection
• Allergies (like hay fever)
• Fungal infections (rare, mostly in people with weakened immune systems)
• Nasal polyps or a deviated nasal septum

Risk factors

• A recent cold or upper respiratory infection
• Allergic rhinitis or asthma
• Smoking or exposure to secondhand smoke
• A weakened immune system
• Anatomical problems in the nose, such as a deviated septum
• Swimming or diving in contaminated water

When to see a doctor

See a doctor urgently if:

• Symptoms that last more than 10 days without improvement
• Symptoms that are severe or worsen after initial improvement
• Facial pain that interferes with daily activities
• Fever higher than 102°F (39°C) or lasting more than 3 days

Book a routine appointment if:

• You have recurrent or chronic sinus symptoms (more than 4 times a year)
• Over-the-counter home care has not helped after 7 days
• You have asthma or chronic obstructive pulmonary disease (COPD)
• You have a weakened immune system

Diagnosis

Your doctor will ask about your symptoms and examine you. In many cases, no tests are needed. The doctor may look into your nose using a small lighted tool called an otoscope, or use a thin, flexible scope if you have ongoing symptoms.

Tests that may be done

• Physical exam and medical history
• Using a light and a small tool to look inside your nose
• Nasal endoscopy (a thin tube with a camera) for persistent symptoms
• Imaging tests like a CT scan if the doctor suspects complications or chronic sinusitis
• A sample of nasal mucus for testing in unusual or severe cases

What to expect at your appointment

The doctor will likely ask about when the symptoms started, how severe they are, and whether you have allergies or other health problems. A sinus infection is usually diagnosed based on your symptoms and the nasal exam. Most people do not need any imaging tests.

Treatment

Treatment depends on whether the infection is viral or bacterial, and how long it has lasted. For most viral sinus infections, the goal is to ease symptoms and support your immune system. Bacterial infections may require antibiotics, but they are not needed for most people.

Self-care at home

• Rest and drink plenty of fluids
• Breathe in steam from a shower or a bowl of warm water
• Place a warm, moist towel over your face to ease pain
• Use a saline (saltwater) nasal rinse or spray to clear mucus
• Avoid blowing your nose too hard
• Elevate your head with an extra pillow while resting

Medical treatments

If your doctor believes the infection is bacterial, they may prescribe a course of antibiotics. Always take the full course as directed. For chronic or recurrent sinusitis, your doctor might suggest a short course of a nasal steroid spray to reduce inflammation, or decongestants for a limited time. Some people benefit from allergy medicines if allergies are a trigger. Never share prescription medicines or use leftover antibiotics.

When is surgery considered?

Surgery is rarely needed. It may be considered if you have chronic sinusitis that does not get better with medical treatment, or if there are structural problems like nasal polyps. A doctor will discuss the options with you in detail.

Living with this condition

While a sinus infection is active, take it easy. Get enough rest, use home care to keep your sinuses moist, and avoid triggers like smoke or strong scents. If you have chronic sinusitis, work with your doctor to find a long-term plan.

Lifestyle tips

• Use a humidifier in dry environments
• Stay well hydrated to thin mucus
• Avoid smoking and secondhand smoke
• Manage allergies with your doctor's guidance
• Wash your hands often to avoid catching new infections

Diet and exercise

Eat a balanced diet rich in fruits and vegetables to support your immune system. Gentle exercise can help, but if you feel tired or have fever, rest instead. Drinking warm fluids like clear soups or herbal tea can also be soothing.

Mental health and emotional wellbeing

Dealing with pain, congestion, and tiredness can be frustrating, especially if the infection lasts a long time. It is normal to feel low sometimes. Talk about your feelings with people you trust, and seek support if your mood does not improve.

Prevention

You cannot always prevent sinusitis, but you can lower your risk by staying healthy, avoiding colds, and taking care of allergies. Good hand hygiene and avoiding contact with sick people help a lot.

Vaccines

Staying up to date with vaccines, such as the seasonal flu vaccine and COVID-19 vaccines, can reduce your chances of getting respiratory infections that sometimes lead to sinusitis. Ask your healthcare provider about what is recommended for you.

Screening programmes

There is no routine screening for sinus infections in healthy people. Screening means testing for a condition before symptoms appear, and that is not needed for sinusitis. Diagnosis is based on symptoms and a clinical exam when you seek care.

Complications

If left untreated

• Rarely, the infection can spread to the eye socket, causing swelling, pain, and vision problems
• Very rarely, it can spread to the brain or membranes around the brain, causing meningitis
• A bone infection called osteomyelitis can occur in the face, but this is rare
• Chronic sinusitis can lead to nasal polyps or a reduced sense of smell

Long-term outlook

Most sinus infections get better completely with time and home care. Even chronic sinusitis can be managed well with a treatment plan. Serious complications are very rare, and seeking medical care for warning signs helps ensure a safe recovery.

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