Chronic sinusitis, medically known as chronic rhinosinusitis, is persistent inflammation of the sinuses and nasal passages lasting 12 weeks or longer despite treatment attempts. Unlike acute sinusitis, which typically resolves within a few weeks, chronic sinusitis involves long-term swelling and irritation of the sinus cavities – the hollow spaces in the bones around your nose and eyes. This condition can prevent normal mucus drainage, potentially leading to mucus buildup, breathing difficulties, and recurring infections. In Singapore’s humid climate, environmental factors such as high humidity and air pollution may contribute to symptoms, underscoring the importance of proper management for residents.
Chronic Sinusitis Treatment in Singapore
Living with chronic sinusitis can significantly impact your daily life, affecting everything from sleep quality to work productivity. If you’ve been dealing with persistent nasal congestion, facial pressure, or recurrent sinus infections lasting more than 12 weeks, you’re not alone. Chronic sinusitis is a common chronic condition seen in ENT clinics. Our ENT specialist provides comprehensive evaluation and personalised treatment plans that may help you breathe more comfortably and support your quality of life.
*Individual results and timelines may vary.*
Dr Gan Eng Cern
MBBS
MRCS (Edin)
mmed (orl)
FAMS
What is Chronic Sinusitis?
Types of Chronic Sinusitis
Chronic Rhinosinusitis without Nasal Polyps
This is a common form, characterised by sinus inflammation without tissue growths. Patients may experience symptoms such as facial pressure, nasal discharge, and a reduced sense of smell. The sinus lining remains inflamed but doesn’t develop polyps.
Chronic Rhinosinusitis with Nasal Polyps
This type involves soft, painless growths (polyps) that can develop from the inflamed sinus lining. These grape-like swellings may block nasal passages and sinuses, potentially causing breathing difficulties. Polyps can recur after treatment, requiring ongoing management.
Allergic Fungal Rhinosinusitis
A type that may affect individuals with allergic reactions to environmental fungi. This form can produce thick, sticky mucus and may require treatment approaches tailored to the individual. Patients might have elevated IgE levels and positive fungal cultures.
Aspirin-Exacerbated Respiratory Disease
This subtype combines chronic sinusitis with nasal polyps and sensitivity to aspirin or NSAIDs. Patients may have concurrent asthma, forming what’s known as Samter’s triad. Management requires careful medication selection and may involve multi-disciplinary care.
*Individual symptoms and treatment responses may vary.*
Causes & Risk Factors
Causes
Chronic sinusitis often involves multiple factors working together:
- Blocked drainage pathways: Structural abnormalities or swelling prevent normal sinus drainage
- Infections: Bacterial, viral, or fungal infections that persist or recur frequently
- Immune system response: Overactive immune responses to environmental triggers
- Biofilm formation: Bacterial communities that resist standard antibiotic treatment
- Mucociliary dysfunction: Impaired ability of sinus cilia to clear mucus effectively
Risk Factors
Several factors may increase the likelihood of developing chronic sinusitis:
- Nasal structural abnormalities: Deviated septum, narrow sinus openings, or enlarged turbinates
- Allergic conditions: Allergic rhinitis, including reactions to dust mites
- Asthma: Chronic sinusitis and asthma can occur together
- Environmental irritants: Cigarette smoke, haze, air pollution, and occupational chemicals
- Immune system disorders: Conditions affecting the body’s ability to fight infections
- Dental infections: Upper tooth infections can spread to the maxillary sinuses
- Regular swimming: Chlorinated pool water can irritate the nasal passages
- Air conditioning exposure: Constant temperature changes and dry air may affect sinus health
*Individual risk factors and their impact may vary.*
Signs & Symptoms
Mild Symptoms
- Nasal congestion or stuffiness lasting over 12 weeks
- Postnasal drip with clear or slightly coloured mucus
- Mild facial pressure around cheeks and forehead
- Reduced sense of smell (hyposmia)
- Morning throat clearing due to mucus drainage
- Occasional mild headaches
- Fatigue from disrupted sleep
Moderate Symptoms
- Thick, discoloured nasal discharge (yellow or green)
- Significant facial pain and pressure, especially when bending forward
- Complete loss of smell (anosmia) and taste alterations
- Persistent cough, worse at night when lying down
- Ear fullness or pressure from eustachian tube dysfunction
- Bad breath (halitosis) not resolved with oral hygiene
- Sleep disturbances from nasal obstruction
Severe Symptoms
- Intense facial pain requiring pain medication
- High fever indicating secondary infection
- Swelling around the eyes or forehead
- Vision changes or double vision
- Severe headaches with neck stiffness
- Confusion or difficulty concentrating
- Complete nasal obstruction affecting both nostrils
Symptoms typically develop gradually over weeks to months, with periods of improvement followed by worsening. Some patients may notice symptoms worsening during Singapore’s haze season or with exposure to air conditioning.
Experiencing these symptoms?
Consult with an ENT specialist for proper evaluation and treatment options.
When To See an ENT Specialist
Consult an ENT specialist if you experience sinus symptoms lasting more than 12 weeks despite over-the-counter treatments. Seek immediate medical attention if you develop a high fever, severe headache, vision changes, swelling around the eyes, or confusion, as these may indicate serious complications.
During your first consultation, an ENT specialist may review your medical history and thoroughly examine you. This includes examining your nasal passages with a lighted instrument and, if necessary, performing nasal endoscopy for detailed visualisation. The consultation allows time to discuss your symptoms and previous treatments, and to develop a tailored management plan.
Early intervention may help prevent complications and support treatment outcomes. Seeking treatment early in the course of chronic symptoms may improve response to medical therapy, potentially avoiding surgical intervention. The ENT specialist may also identify any underlying conditions contributing to your sinusitis, resulting in comprehensive treatment.
Diagnosis & Testing Methods
Accurate diagnosis of chronic sinusitis requires a comprehensive evaluation combining clinical assessment with diagnostic testing. Our ENT specialist begins with a detailed symptom evaluation and physical examination of your nasal passages and throat.
Nasal Endoscopy
Nasal Endoscopy provides direct visualisation of your nasal cavity and sinus openings using a thin, flexible tube with a camera. This procedure may help reveal polyps, structural abnormalities, or signs of infection.
CT Scan of the Sinuses
CT Scan of the Sinuses offers detailed imaging of sinus anatomy and the extent of disease. This non-invasive scan can help identify blocked sinuses, polyps, or structural problems not visible during physical examinati
Allergy Testing
Allergy Testing may be recommended to identify specific triggers contributing to sinus inflammation. Skin prick tests or blood tests can detect allergies to common allergens, including dust mites, mould, and pet dander.
Nasal Culture
Nasal Culture involves collecting mucus samples to identify specific bacteria or fungi causing infection. This can help guide antibiotic selection for targeted treatment.
Treatment Options Overview
Saline Irrigation
Daily nasal rinses using sterile saline solution help flush out mucus, allergens, and irritants from the nasal passages. This treatment may reduce inflammation and support sinus drainage. Patients can perform irrigation using a neti pot or a squeeze bottle. The technique may be suitable for regular use and can be beneficial in urban environments with air pollutants.
Intranasal Corticosteroid Sprays
These medications may reduce inflammation in the nasal passages and sinuses when used as directed. Unlike decongestant sprays, corticosteroid sprays may be suitable for regular use without risk of rebound congestion. Patients may notice improvement with regular use. Options include mometasone, fluticasone, and budesonide.
Oral Antibiotics
For bacterial infections or acute exacerbations, antibiotic therapy may be prescribed based on clinical assessment. Treatment duration varies depending on the condition. ENT specialists select antibiotics based on clinical factors and individual patient considerations. Macrolide antibiotics may be used for their anti-inflammatory properties in some instances.
Systemic Corticosteroids
Short courses of oral steroids, such as prednisolone, may reduce inflammation and polyp size. These medications may be considered for severe symptoms or before surgery to improve visualisation. Treatment duration varies with gradual tapering as appropriate. These medications are used carefully due to potential side effects.
Biological Therapy
Injectable medications targeting specific inflammatory pathways may be considered for severe chronic sinusitis with polyps. Dupilumab and omalizumab are available options that work by blocking inflammatory signals. These treatments require regular injections and may be considered for patients who haven’t responded to conventional therapy. Treatment response is monitored through clinical assessment.
Functional Endoscopic Sinus Surgery (FESS)
This procedure uses an endoscope to remove blockages and enlarge sinus openings without external incisions. Performed under general anaesthesia, FESS aims to preserve normal tissue while improving sinus drainage. The procedure duration varies depending on the extent of the disease. Recovery time varies by individual.
Balloon Sinuplasty
A procedure using a small balloon catheter to dilate blocked sinus openings. The balloon is inflated to remodel and enlarge the sinus passages without removing tissue. This procedure can be performed under local anaesthesia in selected cases. Recovery varies by individual. It may be suitable for patients with limited sinus disease.
Septoplasty and Turbinate Reduction
When structural abnormalities contribute to chronic sinusitis, corrective surgery may be considered. Septoplasty aims to straighten a deviated nasal septum, while turbinate reduction addresses enlarged nasal turbinates. These procedures may be combined with sinus surgery for comprehensive treatment. Recovery involves a period of nasal congestion before breathing may improve.
Every patient’s condition is unique.
Our ENT specialist may assess your specific situation and recommend the most suitable treatment.
Complications if Left Untreated
Untreated chronic sinusitis may lead to health complications affecting multiple organ systems. The inflammation and infection can spread beyond the sinuses to nearby structures, including the eyes and brain. Orbital complications such as periorbital cellulitis (infection around the eye) or abscess formation can affect vision if not promptly treated.
Chronic inflammation may extend to the lower airways, potentially worsening existing asthma or contributing to new respiratory problems. The persistent postnasal drip can contribute to chronic bronchitis and recurrent chest infections.
Quality of life may deteriorate without proper treatment. Chronic fatigue from poor sleep, reduced productivity at work, and social isolation due to symptoms can occur. The burden may include repeated doctor visits, multiple courses of antibiotics, and lost work days. Some patients may develop depression or anxiety related to their chronic symptoms.
Rare but serious complications include meningitis, brain abscess, or osteomyelitis (bone infection) of the skull bones. While uncommon, these conditions underscore the importance of proper management. Early treatment aims to prevent progression and reduce the risk of complications.
*Individual outcomes may vary. This information is provided for educational purposes and does not replace professional medical advice.*
Prevention
While not all cases of chronic sinusitis are preventable, several strategies may help reduce your risk or prevent symptom flares. Managing allergies through allergen avoidance and appropriate medications may help prevent the inflammatory cascade that can lead to sinusitis. In Singapore, using HEPA air purifiers and dust mite covers may help reduce exposure to common triggers.
Maintaining good nasal hygiene through regular saline irrigation may help clear irritants before they cause inflammation. This is particularly important during haze periods or after exposure to air conditioning. Staying well-hydrated helps keep mucus thin and easier to drain naturally.
Avoiding cigarette smoke and other respiratory irritants may help protect your sinus lining from damage. If you smoke, quitting may be an effective preventive measure. Similarly, using a humidifier in air-conditioned environments may help prevent excessive nasal drying.
Treating acute sinus infections promptly and completely may help prevent progression to chronic sinusitis. Don’t stop antibiotics early, even if symptoms improve. Regular dental check-ups may help prevent tooth infections from spreading to the maxillary sinuses. Annual flu vaccinations may help reduce viral infections that can trigger sinusitis episodes.
*Individual results and prevention effectiveness may vary.*
Medisave & Insurance Shield Plan approved
Your ENT procedure may be eligible for Medisave claims, with the claimable amount varying based on the procedure’s complexity. For additional options, including the use of your insurance or Integrated Shield Plan, reach out to our friendly clinic staff today for assistance.
Frequently Asked Questions (FAQ)
How is chronic sinusitis different from regular sinus infections?
Chronic sinusitis involves persistent inflammation lasting more than 12 weeks, while acute sinus infections typically resolve within a few weeks. Chronic sinusitis may have less severe but more persistent symptoms, often without fever. The condition requires different treatment approaches, focusing on long-term control of inflammation rather than just fighting infection. Chronic sinusitis cases may involve non-infectious inflammation, making antibiotics less effective than in acute infections.
Can chronic sinusitis be completely cured?
While chronic sinusitis can be effectively managed and symptoms may be improved, it’s often a long-term condition requiring ongoing treatment. Patients may achieve symptom control with appropriate medical therapy or surgery. The goal is to reach a point where symptoms don’t interfere with daily life. Some patients may experience periods of remission with proper management.
Will I definitely need surgery for chronic sinusitis?
Surgery isn’t always necessary for chronic sinusitis. Patients may respond well to comprehensive medical management, including medications and nasal irrigation. Surgery is typically considered when medical therapy fails after several months or when structural abnormalities block sinus drainage. An ENT specialist can assess medical options before recommending surgery. *Individual treatment plans may vary
How does Singapore’s climate affect chronic sinusitis?
Singapore’s high humidity and temperature fluctuations between air-conditioned spaces and outdoors can aggravate sinus symptoms. The humidity promotes mould and dust mite growth, common triggers for sinus inflammation. Haze periods may worsen symptoms by irritating the nasal passages with particulate matter. The warm climate can also benefit some patients by keeping nasal passages moist. Managing environmental factors through air purification and humidity control may help minimise climate-related symptom flares.
What lifestyle changes help manage chronic sinusitis?
Several lifestyle modifications may improve chronic sinusitis symptoms. Daily nasal saline irrigation, staying well-hydrated, and using a humidifier in air-conditioned rooms help maintain healthy sinuses. Avoiding known triggers like cigarette smoke, strong perfumes, and allergens may reduce inflammation. Regular exercise may improve immune function and promote sinus drainage. Elevating your head while sleeping may reduce nighttime congestion. Managing stress through relaxation techniques may also help, as stress can worsen inflammation.
How long does recovery take after sinus surgery?
Initial recovery from endoscopic sinus surgery typically takes a few weeks, during which you may experience congestion and mild discomfort. Patients may return to work within several days for desk jobs, longer for physical work. Complete healing, including resolution of swelling, may take several weeks. The benefits of surgery may not be apparent for a few months as inflammation subsides. Post-operative care, including nasal irrigation and medications, is important for healing. Regular follow-ups help with proper healing and address any concerns.
*Individual recovery times may vary.*
Conclusion
Chronic sinusitis is a manageable condition with today’s comprehensive treatment options. From modern medical therapies to minimally invasive surgical techniques, our ENT specialist can develop a personalised treatment plan addressing your specific symptoms and underlying causes. The key to management lies in accurate diagnosis, appropriate treatment selection, and consistent follow-up care. With proper treatment, patients may experience improvement in their symptoms and quality of life.
Every patient’s condition is unique.
Living with chronic sinusitis can be challenging, but you don’t have to face it alone. Our ENT specialist has experience diagnosing and treating chronic sinusitis using current diagnostic and therapeutic approaches.
Dr Gan Eng Cern
MBBS
MRCS (Edin)
mmed (orl)
FAMS
With over 15 years of experience, Dr Gan specialises in the comprehensive management of a broad range of conditions related to the ear, nose and throat (ENT), and head and neck.
Dr. Gan has contributed to the academic field as a Senior Clinical Lecturer at the Yong Loo Lin School of Medicine, National University of Singapore. He is recognised for his extensive research work, with numerous contributions to reputable international ENT journals. Dr Gan is also highly sought after as a speaker and has shared his surgical knowledge as a surgical dissection teacher at various prominent ENT conferences and courses.
- 2020 – Reader’s Choice Gold Award for Best ENT Specialist (Expat Living Singapore)
- 2016 – Best Educator Award (Eastern Health Alliance)
- 2016 – “Wow” Award (Patient Compliment)
- 2014 – Eastern Health Alliance Caring Award – Silver
- 2014 – 19th Yahya Cohen Memorial Lectureship (awarded by the College of Surgeons, Academy of Medicine Singapore for best scientific surgical paper)
- 2012 – Human Manpower Development Award (Ministry of Health, Singapore)
- 2007 – Singhealth Best Doctor Award
Qualifications
- MBBS – Bachelor of Science, Bachelor of Medicine, Bachelor of Surgery (University of New South Wales, Sydney, Australia)
- MRCS (Edin) – Member of the Royal College of Surgeons Edinburgh, United Kingdom
- MMed (ORL) – Master of Medicine in ENT (National University of Singapore)
- FAMS – Fellow of the Academy of Medicine Singapore
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A Specialist Clinic for Sinus, Snoring & ENT
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Mount Elizabeth Novena Hospital
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