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Dont Ignore Chronic Cold Symptoms: Prolonged Nasal Congestion May Indicate Chronic Sinusitis

Health-and-beauty02 Nov 2026 15:48 GMT+7

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Dont Ignore Chronic Cold Symptoms: Prolonged Nasal Congestion May Indicate Chronic Sinusitis

When experiencing cold symptoms like nasal congestion or a runny nose, many people consider it normal and expect recovery with medication. However, if these symptoms persist for several weeks or months, there may be more complex underlying causes.

A key point to note is if symptoms last longer than 12 weeks, accompanied by dull facial pain and a diminishing sense of smell. These signs indicate chronic sinusitis, which, if left untreated, may lead to complications affecting long-term health.

What is chronic sinusitis, and why does the inflammation last more than 12 weeks?

Many assume sinus symptoms are mostly caused by infections, but Dr. Bannawat Tantikun, an otolaryngologist specializing in nasal and allergy diseases at Vejthani International Hospital, points out that this condition is more complex.

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Chronic sinusitis is a condition where the air-filled cavities in the nose and sinuses remain inflamed continuously for over 12 weeks, typically not primarily caused by direct infections.

The human head contains four pairs of sinus cavities, and inflammation can occur in any of these locations.  

  • Frontal sinus (forehead region).
  • Ethmoid sinus (between the eyes).
  • Maxillary sinus (cheek area).
  • Sphenoid sinus (base of the skull).

When these sinuses become inflamed, symptoms include nasal congestion, facial pain, thick sticky mucus, and a noticeable decrease in the ability to smell.

Is chronic sinusitis contagious? Check these 4 key causes you should know.

Chronic sinusitis is not contagious because it is not directly caused by infectious agents, but results from an individual's inflammatory process. The four main causes are:

  • Persistent symptoms following a common cold. Swelling of the sinus mucosa after respiratory infections, blocking fluid drainage and leading to long-term inflammation.
  • Allergic rhinitis. Causes airway mucosa to react sensitively to triggers, resulting in swelling and blockage.
  • Abnormal internal nasal structures. Such as a deviated nasal septum, enlarged lateral nasal walls blocking sinus openings, or nasal polyps.
  • Environmental factors. Regular exposure to dust, pollution, and cigarette smoke.

4 warning signs of sinusitis that affect daily life when a chronic cold won’t go away.

Though it may resemble a cold or allergy, chronic sinusitis symptoms are often more severe and last longer than 12 weeks. Diagnosis requires at least 2 of 4 key signs, with nasal congestion or thick sticky mucus as one essential symptom.

  1. Nasal congestion causing difficulty breathing, with blockage on one or both sides.
  2. Thick, cloudy mucus or constant postnasal drip.
  3. Reduced sense of smell, ranging from diminished to complete loss.
  4. Facial pain, including dull pain around the eyebrows, eye sockets, forehead, or headache.

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If symptoms come and go but disrupt sleep and daily life, a specialist should be consulted. Examination includes nasal endoscopy and possibly a CT scan to evaluate structural abnormalities.

How is chronic sinusitis treated and when is endoscopic surgery necessary?

Treatment does not always end with surgery; initially, doctors focus on medications such as nasal steroid sprays, saline irrigation, and antibiotics or allergy medications to reduce inflammation.

If medication fails to improve symptoms or nasal structures block airways, doctors may recommend endoscopic sinus surgery (ESS) to remove inflamed tissue and reopen drainage pathways for better sinus function.

Worry less about scars, as modern technology allows surgery through the nostrils using a navigation system that precisely guides instruments, avoiding damage to the eyes and brain, resulting in less pain, safety, and rapid recovery.

6 self-care tips to prevent chronic sinusitis recurrence.

Beyond medication or surgery, daily hygiene care is crucial for restoring respiratory mucosa and preventing symptom relapse.

  • Get adequate sleep to strengthen the immune system.
  • Exercise regularly to improve physical strength.
  • Quit smoking completely.
  • Avoid alcohol consumption.
  • Drink sufficient clean water throughout the day.
  • Avoid exposure to dusty, smoky, and polluted environments.

If nasal congestion and thick mucus persist, do not ignore them because chronic sinusitis affects long-term health. Proper diagnosis will help restore clear breathing and improve quality of life.