Postnasal Drip

Postnasal drip, also known as upper airway secretion syndrome, is a condition characterized by the sensation of mucus running down the back of the throat.

Causes

  • Allergies: Allergic reactions to dust, pollen, pet dander, or mold can cause postnasal drip.
  • Cold and flu viruses: Respiratory infections such as the common cold and influenza can lead to postnasal drip.
  • Sinus infections: Bacterial or viral sinusitis can cause postnasal drip.
  • Environmental factors: Exposure to tobacco smoke, pollution, or changes in humidity can contribute to postnasal drip.
  • Anatomical issues: Deviated septum, nasal polyps, or enlarged adenoids can cause postnasal drip.
  • Gastroesophageal reflux disease (GERD): Stomach acid flowing up into the throat can irritate the tissues and cause postnasal drip.

Symptoms

Diagnosis

Diagnosis of postnasal drip is typically based on a physical examination and medical history. A healthcare provider may perform:

  • Nasal endoscopy: To visualize the nasal passages and sinuses.
  • Imaging tests: Such as X-rays, CT scans, or MRI scans to evaluate the sinuses and nasal passages.
  • Allergy testing: To determine if allergies are contributing to postnasal drip.

Treatment

Treatment for postnasal drip depends on the underlying cause. Common treatments include:

  • Antihistamines or decongestants: To relieve allergy symptoms and reduce nasal congestion.
  • Nasal saline irrigations: To moisturize the nasal passages and loosen mucus.
  • Expectorants: To thin and clear mucus from the airways.
  • Antibiotics: If a bacterial infection is present.
  • Surgery: In some cases, surgery may be necessary to correct anatomical issues or remove nasal polyps.

Home Remedies

In addition to medical treatment, there are several home remedies that can help alleviate postnasal drip symptoms:

  • Stay hydrated: Drinking plenty of fluids can help thin mucus and keep the nasal passages moist.
  • Use a humidifier: Adding moisture to the air can help relieve congestion and reduce postnasal drip.
  • Avoid irritants: Avoid exposure to tobacco smoke, pollution, and other environmental irritants.
  • Elevate your head: Sleeping with your head elevated can help reduce postnasal drip symptoms at night.

Frequently Asked Questions (FAQs)

What is postnasal drip?
Excess mucus that runs down the back of the throat.

What causes postnasal drip?
Allergies, colds, sinus infections, and environmental factors.

What are common symptoms of postnasal drip?
Sore throat, coughing, and nasal congestion.

How is postnasal drip diagnosed?
Physical exam and medical history.

Can postnasal drip be treated at home?
Yes, with over-the-counter medications and humidifiers.

What medications can help relieve postnasal drip?
Antihistamines, decongestants, and expectorants.

Can allergies trigger postnasal drip?
Yes, especially seasonal allergies.

Is postnasal drip contagious?
No, it is not contagious.

How long does postnasal drip typically last?
Varies, but usually several days to weeks.

When should I see a doctor for postnasal drip?
If symptoms worsen or last more than 10 days.

Article last updated on: 25th June 2025.
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