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Most coughs from colds resolve within a few weeks. When a cough persists beyond that, it is worth understanding what might be causing it and when to seek an evaluation.
What Counts as a "Persistent" Cough?
A cough lasting more than 8 weeks in adults is generally considered chronic. Coughs lasting 3-8 weeks are sometimes called subacute. Both are worth paying attention to, especially if they are not improving.
🤧 Post-Nasal Drip
Mucus draining down the throat, a common cause of chronic cough.
🔥 Acid Reflux
GERD can trigger a chronic cough, sometimes without typical heartburn.
💨 Asthma
Can present primarily as a persistent cough in some people.
💊 Certain Medications
Some blood pressure medications can cause cough as a side effect.
Why It's Worth Getting Evaluated
Chronic cough has several possible causes, and identifying the right one often requires a proper evaluation rather than guesswork. A pulmonologist can assess your symptoms, rule out more serious causes, and recommend appropriate treatment.
Note: this list covers common causes, but chronic cough can also be linked to other lung conditions. A proper evaluation is the reliable way to understand what is behind your specific cough.
When to See a Pulmonologist
- Cough lasting more than 8 weeks
- Cough accompanied by shortness of breath or wheezing
- Coughing up blood - this needs prompt evaluation
- Cough with unexplained weight loss
- Cough significantly affecting your sleep or daily activities
United Hospitals' pulmonology team, Jayanagar, evaluates and manages chronic cough. If your cough has persisted, our team is here to help - call (+91) 80 4566 6666, or explore our full Pulmonology Care page.
Dr. Mallikarjun
Consultant - Pulmonology and Sleep medicine
Pulmonology & Sleep Medicine · United Hospitals, Jayanagar
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Frequently Asked Questions
How long is too long for a cough to last?
A cough lasting more than 8 weeks in adults is generally considered chronic and worth evaluating if it has not improved.
Can acid reflux cause a chronic cough?
Yes, GERD is a common cause of chronic cough, sometimes occurring without the typical heartburn symptoms.
Could my cough be related to a medication I take?
Some medications, particularly certain blood pressure medications, can cause cough as a side effect. Discuss this with your doctor if you suspect this may apply to you.
Is a chronic cough always serious?
Not necessarily, but it always warrants evaluation to identify the cause, since chronic cough has several possible underlying reasons ranging from minor to more significant.
United Hospitals - Pulmonology & Sleep Medicine, Jayanagar
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Jayanagar, Bengaluru 560 011
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