Post-Nasal Drip

Post-nasal drip is the sensation of mucus dripping from the back of the nose into the throat. It commonly causes throat clearing, cough, and a feeling of something stuck.

Quick Facts

  • ICD-10: R09.82
  • Common causes: Allergies, sinusitis, irritants

Symptoms

  • Persistent need to clear the throat
  • Cough, often worse at night or in the morning
  • Sore throat
  • Hoarseness
  • Feeling of mucus in the back of the throat

Common Causes

  • Allergic rhinitis
  • Sinusitis
  • Non-allergic rhinitis (irritants, temperature changes)
  • GERD (acid can trigger excess mucus)
  • Cold or flu
  • Pregnancy
  • Some medications

Treatment

  • Saline nasal sprays or rinses
  • Antihistamines for allergic causes
  • Intranasal corticosteroids
  • Decongestants short-term
  • Treat reflux if contributing
  • Stay hydrated
  • Avoid known triggers

When to See a Doctor

See a doctor for post-nasal drip lasting more than a few weeks, or sooner with fever, severe sinus pain, blood in mucus, or significant cough.

Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.

References

  • American Academy of Otolaryngology. Post-Nasal Drip Information.