Question 1

What causes post-nasal drip?

Accepted Answer

Post-nasal drip results from excess mucus production in the nasal passages and sinuses. Common causes include: allergic rhinitis (from pollen, dust, pet dander), non-allergic rhinitis (triggered by weather, odors, medications), acute sinusitis (sinus infection), chronic sinusitis, vasomotor rhinitis (temperature/hormone changes), pregnancy rhinitis, and laryngopharyngeal reflux (acid from stomach reaching throat). In some cases, the cause may be multifactorial.

Question 2

How do I get rid of post-nasal drip?

Accepted Answer

Treatment depends on the cause: For allergies - antihistamines, nasal steroid sprays, and allergen avoidance. For infections - antibiotics if bacterial, supportive care if viral. For non-allergic rhinitis - nasal sprays, saline irrigation, and avoiding triggers. For reflux - PPIs and lifestyle modifications. Home remedies include: saline nasal irrigation, steam inhalation, humidifier use, staying hydrated, and avoiding dairy if it increases mucus. Persistent symptoms require medical evaluation.

Question 3

Why is post-nasal drip worse at night?

Accepted Answer

Post-nasal drip often worsens at night due to several factors: Gravity - when lying down, mucus cannot drain as easily; Reduced swallowing - we swallow less during sleep, allowing mucus to accumulate; Allergen exposure - bedrooms may contain dust mites or pet dander; Temperature changes - cool bedroom air can trigger mucus production; and Reflux - lying flat allows stomach acid to reach the throat more easily. Using extra pillows to elevate the head can help reduce nighttime symptoms.

Question 4

Can post-nasal drip cause cough?

Accepted Answer

Yes, post-nasal drip is one of the most common causes of chronic cough. This is called upper airway cough syndrome. The mucus dripping down the throat irritates the cough receptors, triggering a persistent cough. This cough is typically worse at night and may be accompanied by throat clearing. Treating the post-nasal drip usually resolves the cough.

Question 5

How long does post-nasal drip last?

Accepted Answer

Duration varies by cause: Acute post-nasal drip from colds typically lasts 1-2 weeks. Allergic post-nasal drip persists as long as allergen exposure continues. Non-allergic rhinitis and chronic sinusitis can cause symptoms for months or years without treatment. Viral infections usually resolve within 10-14 days. Persistent symptoms beyond 3 months warrant medical evaluation to identify underlying causes.

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