Does Postnasal Drip Mean Chronic Sinusitis?
Postnasal drip, medically known as postnasal drainage, is the flow of mucus produced in the nose and sinuses toward the back of the throat.
Although many people directly associate postnasal drip with chronic sinusitis, this is not always correct.
In fact, postnasal drip can have many different causes, and for proper treatment, the cause must first be clarified.
Symptoms of Postnasal Drip
People with postnasal drip typically present with the following complaints:
- Constant mucus sensation in the throat
- Frequent need to clear the throat
- Morning throat dryness or burning
- Bad breath
- Sometimes cough and hoarseness
These symptoms can be mild or severe depending on the underlying cause.
Main Causes of Postnasal Drip
1-) Chronic Sinusitis
In prolonged sinus inflammations, mucus accumulated in the sinuses flows toward the throat instead of the nose.
In this condition, the discharge is usually thick, yellow-green colored and sometimes foul-smelling.
Patients especially feel the need to clear their throats when they wake up in the morning.
2-) Allergic Rhinitis
Allergens such as pollen, house dust mites, mold, and animal dander cause edema and increased mucus in the nasal mucosa.
Postnasal drip in allergic rhinitis is usually clear, watery and shows seasonal characteristics.
3-) Vasomotor Rhinitis
In this condition, which is not allergy-related but where nasal blood vessels are overly sensitive;
triggers such as air temperature changes, strong odors, perfume, cigarette smoke cause nasal discharge.
The amount of mucus increases, flows toward the throat, and creates a chronic discomfort sensation.
4-) Cigarette and IQOS Use
Cigarette smoke and heated tobacco products (IQOS) dry the nasal mucosa, disrupt the defense mechanism, and change the consistency of mucus.
This condition increases susceptibility to both allergic and infection-related discharges.
Postnasal drip can become chronic in regular smokers.
5-) Insufficient Water Intake
Inadequate fluid consumption causes mucus to thicken. Thick mucus sticks to the throat and becomes difficult to clear.
Therefore, drinking adequate water daily is a simple but effective measure for those with postnasal drip complaints.
6-) Septum Deviation and Turbinate Hypertrophy
Curvature of the nasal septum (septum deviation) and enlargement of nasal turbinates (turbinate hypertrophy) do not cause postnasal drip by themselves.
However, by disrupting the airflow inside the nose, they can negatively affect sinus ventilation and mucus clearance.
This can prepare the ground for sinusitis development, indirectly contributing to postnasal drip.
How is Diagnosis Made?
The most important step in postnasal drip is correctly identifying the cause. For this:
- Endoscopic nasal examination is performed.
- In suspected chronic sinusitis, sinus tomography is requested.
- Allergy tests, mucus culture, or blood tests may be performed.
Treatment Methods
Treatment is planned according to the cause:
- Chronic sinusitis → Medical treatment (antibiotics, corticosteroid spray), saline irrigation, if necessary endoscopic sinus surgery
- Allergic/vasomotor rhinitis → Nasal sprays, antihistamines, avoiding triggers
- Smoking cessation → The most important step for mucosal recovery
- Adequate water consumption → Thins mucus, facilitates drainage
- Nasal structural problems → If necessary, indirect effect can be achieved through surgery (septoplasty, turbinate reduction).
💬 Final Word:
Postnasal drip does not always mean chronic sinusitis.
Even seemingly simple causes such as allergic or vasomotor rhinitis, lifestyle habits, smoking, drinking insufficient water can lead to this complaint.
As Prof. Dr. Gediz Murat Serin, with over 20 years of ENT experience, I identify the cause of postnasal drip and create the most suitable treatment plan for you.
Remember, treatments performed without proper diagnosis often do not provide permanent solutions.



