Chronic sinusitis
What is Chronic sinusitis?
Chronic sinusitis is a long-term inflammation of the sinuses that lasts 12 weeks or longer. Your sinuses are hollow spaces in the bones around your nose and eyes. They normally produce mucus that drains through your nasal passages. When your sinuses become inflamed and swollen, drainage gets blocked and mucus builds up.
This condition affects more than 28 million American adults each year. Unlike a common sinus infection that clears up in a week or two, chronic sinusitis persists for months. It can happen when infections, allergies, or structural problems prevent your sinuses from draining properly. Some cases are linked to bacterial infections, while others may be caused by fungal organisms like Phoma betae.
Chronic sinusitis can significantly impact your quality of life. It may cause ongoing facial pain, difficulty breathing through your nose, and constant congestion. Finding the root cause is essential for getting the right treatment and feeling better long-term.
Symptoms
- Thick, discolored mucus from your nose or down your throat
- Nasal congestion or blockage that makes breathing difficult
- Pain, tenderness, and swelling around your eyes, cheeks, nose, or forehead
- Reduced sense of smell and taste
- Ear pain or pressure in your ears
- Aching in your upper jaw and teeth
- Cough that may worsen at night
- Sore throat from postnasal drip
- Fatigue or feeling generally unwell
- Headaches or pressure in your face
Symptoms must last at least 12 weeks to be considered chronic sinusitis. Some people experience symptoms that come and go, while others have constant discomfort. The severity can vary from mild irritation to significant pain that affects daily activities.
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Causes and risk factors
Chronic sinusitis happens when something blocks your sinus drainage pathways for an extended period. Common causes include nasal polyps, which are small growths in your nasal passages, and a deviated septum that blocks sinus openings. Allergies to dust, pollen, or mold can cause ongoing inflammation. Respiratory tract infections that do not fully clear can lead to chronic inflammation. Some cases are caused by fungal infections, including exposure to fungi like Phoma betae that trigger immune responses.
Risk factors include having asthma, which often occurs alongside chronic sinusitis. Immune system disorders or conditions that affect how mucus moves through your body increase your risk. Regular exposure to pollutants, cigarette smoke, or other irritants can damage the lining of your sinuses. People with aspirin sensitivity or other medication allergies may be more prone to chronic sinus inflammation. Dental infections can sometimes spread to the sinuses and cause ongoing problems.
How it's diagnosed
Doctors diagnose chronic sinusitis based on your symptoms, medical history, and a physical examination. Your doctor will look inside your nose with a special light to check for inflammation, polyps, or other abnormalities. They may gently press on your sinuses to check for tenderness. A nasal endoscopy uses a thin, flexible tube with a camera to see deeper into your nasal passages and sinuses.
Imaging tests like CT scans can show detailed pictures of your sinuses and identify blockages or structural problems. Specialized blood tests can help identify underlying causes, including fungal infections. Testing for Phoma betae IgG antibodies can reveal if a fungal infection is contributing to your symptoms. Talk to a doctor about which tests are right for your situation. These specialized tests may need to be ordered through your healthcare provider.
Treatment options
- Saline nasal irrigation to flush out mucus and irritants from your sinuses
- Nasal corticosteroid sprays to reduce inflammation in your nasal passages
- Oral or injectable corticosteroids for severe inflammation that does not respond to sprays
- Antibiotics if a bacterial infection is present, though not effective for all cases
- Antifungal medications if testing shows a fungal infection like Phoma betae
- Antihistamines or allergy treatments if allergies are triggering your symptoms
- Using a humidifier to keep nasal passages moist and improve drainage
- Avoiding known triggers like smoke, strong perfumes, and allergens
- Staying hydrated to thin mucus and promote better drainage
- Surgery to remove polyps, correct a deviated septum, or open blocked sinus passages if other treatments fail
Frequently asked questions
A regular sinus infection, also called acute sinusitis, usually lasts 7 to 10 days and clears up on its own or with treatment. Chronic sinusitis lasts at least 12 weeks despite treatment attempts. Chronic sinusitis involves ongoing inflammation that may have different underlying causes than a simple bacterial infection.
Yes, allergies are a common cause of chronic sinusitis. When you are exposed to allergens like pollen, dust, or mold, your nasal passages become inflamed and swollen. This inflammation can block sinus drainage and lead to ongoing infection or irritation. Managing your allergies can help prevent or reduce chronic sinusitis symptoms.
Phoma betae is a type of fungus that can be found in the environment. Some people develop an immune response to this fungus, which can contribute to chronic sinus inflammation. A blood test measuring Phoma betae IgG antibodies can show if your body has been exposed to this fungus and is mounting an immune response that may be causing your symptoms.
Not always. Antibiotics only work for bacterial infections, and many cases of chronic sinusitis are caused by other factors like allergies, fungal infections, or structural problems. Your doctor will determine if bacteria are causing your symptoms before prescribing antibiotics. Overusing antibiotics can lead to resistance and may not address the root cause of your condition.
See a doctor if your sinus symptoms last more than 10 days, if they keep coming back, or if they do not improve with over-the-counter treatments. You should also seek care if you have severe symptoms like high fever, vision changes, severe headache, or swelling around your eyes. These could indicate a more serious infection that needs immediate attention.
Chronic sinusitis rarely resolves without treatment because underlying causes need to be addressed. While symptoms may improve temporarily, the inflammation typically returns without proper management. Identifying and treating the root cause, whether it is allergies, infection, or structural issues, is necessary for long-term relief.
Regular nasal irrigation with saline solution helps keep sinuses clear. Using a humidifier adds moisture to the air and prevents nasal passages from drying out. Avoiding cigarette smoke, strong perfumes, and known allergens reduces irritation. Staying well-hydrated helps thin mucus so it drains more easily.
Surgery is usually considered only after other treatments have failed. Most people find relief with medications, nasal irrigation, and lifestyle changes. Surgery may be recommended if you have nasal polyps, a severely deviated septum, or other structural problems that prevent proper drainage. Your doctor will discuss surgical options if conservative treatments are not working.
Yes, chronic sinusitis can impact your quality of life beyond just sinus symptoms. It can cause fatigue, difficulty sleeping, and reduced productivity at work or school. Ongoing inflammation may worsen asthma symptoms if you have asthma. Addressing chronic sinusitis can improve your overall wellbeing and energy levels.
Fungal sinusitis often has similar symptoms to other types of chronic sinusitis, making it hard to tell the difference without testing. Specialized blood tests can measure antibodies to specific fungi like Phoma betae. Your doctor may also use imaging or nasal endoscopy to look for signs of fungal infection. Proper testing helps identify the cause so you can get targeted treatment.