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Chronic Cough
A chronic cough is one that lasts more than about eight weeks in adults. It is a symptom rather than a disease, and finding the cause is the key to treating it.
Causes & risk factors
- Post-nasal drip from allergies or sinus problems
- Asthma or airway sensitivity
- Acid reflux (GERD)
- Smoking or air pollution
- Some blood pressure medicines
- Lingering effect of an infection
Common symptoms
- Persistent cough
- Throat irritation
- Heartburn or acid taste
- Wheezing
- Runny or blocked nose
Tests & diagnosis
- Chest X-ray
- Spirometry (lung function test)
- Allergy assessment
- Sputum test if needed
Treatment & management
- Treating the underlying cause (reflux, allergy, asthma)
- Stopping smoking and avoiding irritants
- Reviewing medicines that can cause cough
- Simple soothing measures like warm drinks and honey
- Referral if no cause is found
When to see a doctor urgently
- Coughing up blood — see a doctor urgently
- Cough with weight loss, night sweats or breathlessness
- A cough lasting more than 3 weeks that is not improving
- Chest pain or a change in a long-standing cough
Not a diagnosis. MedDroid gives general educational information about chronic cough. It cannot examine you, diagnose or prescribe — always confirm with a qualified doctor.
Frequently asked questions
When is a cough considered chronic?
In adults, a cough lasting more than about eight weeks is called chronic and is worth investigating for a cause.
Can medicines cause a cough?
Yes. Some blood pressure medicines (ACE inhibitors) are a well-known cause. Tell your doctor about all your medicines.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.