Allergy
6 min read
Understanding Chronic Cough: Common Causes and Management
By Dr. Navaneeth K. Unni•Published on 2026-06-28•Patient Group: Adults
Clinical Overview & Pathophysiology
A cough is a vital protective reflex, but when it lasts longer than 8 weeks in adults (or 4 weeks in children), it is classified as a chronic cough. Chronic cough is not a disease in itself, but rather a symptom of an underlying condition. The vast majority of cases are driven by three common triggers: post-nasal drip, cough-variant asthma, and gastroesophageal reflux disease (GERD).
Key Clinical Facts & Indicators
- Post-Nasal Drip (UACS): A constant tickle in the back of the throat, frequent throat clearing, and nasal congestion.
- Cough-Variant Asthma: A persistent dry cough triggered by exercise, cold air, or laughter, without classic whistling wheezes.
- Acid Reflux Link (GERD): Coughing spells that worsen when lying down, after meals, or accompanied by heartburn and a sour taste.
- Medication-Induced Cough: A dry hacking cough caused by ACE-inhibitor blood pressure medications.
Lifestyle & Nutritional Guidelines
Identify and address the root cause with a healthcare professional. Elevate the head of the bed if acid reflux is suspected, and avoid eating within 3 hours of sleep. Stay hydrated with warm fluids to soothe throat linings. Avoid exposure to chemical fumes, dust, and cold air. Follow an individualized care plan.
Frequently Asked Questions
Q: Can stress cause a chronic cough?Yes, a 'somatic' or psychogenic cough can develop under high anxiety or stress, often resolving during sleep and worsening during periods of focus.
Q: When is a chronic cough serious?Seek prompt medical care if the cough is accompanied by coughing up blood, high fever, unexplained weight loss, or difficulty swallowing.
✓Medically reviewed by Dr. Navaneeth K. Unni
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