Pulmonary Medicine

Chronic Cough & Breathlessness

A cough lasting more than a few weeks, or new breathlessness, should be evaluated.

Written by Dr. Sumanth G Medically reviewed by Dr. Sumanth G Last reviewed: 01 Aug 2026

What is Chronic Cough & Breathlessness?

A cough lasting more than about three weeks, or breathlessness that is new or worsening, deserves evaluation. There are many treatable causes, from asthma and reflux to infection — the key is finding the right one.

Who may need evaluation

  • Anyone with a cough lasting more than three weeks
  • People with new or worsening breathlessness
  • Those coughing blood or losing weight

Symptoms & signs

  • Persistent cough
  • Breathlessness or reduced exercise tolerance
  • Wheezing or chest tightness
  • Phlegm, or coughing blood

Causes

  • Asthma, COPD or infection
  • Post-nasal drip or acid reflux
  • Smoking, and less commonly other lung conditions

Risk factors

  • Smoking
  • Allergies and reflux
  • Exposure to dust, smoke or pollution

When to seek care

  • Cough lasting more than three weeks
  • Coughing blood, or weight loss with cough
  • Breathlessness at rest — seek prompt care

Diagnosis & evaluation

  • A detailed history and examination
  • Lung function testing and chest imaging where indicated
  • Targeted tests to find the cause

Treatment & management

  • Treatment aimed at the underlying cause
  • Inhalers, reflux or allergy treatment as needed
  • Smoking-cessation support
  • Follow-up to confirm resolution

What to expect at your visit

  • A methodical search for the cause
  • A clear explanation and plan
  • Follow-up until the cough settles

A note on health information: Content on this website is for general awareness and does not replace a consultation. For diagnosis or treatment, please book an appointment with the relevant specialist at Parijatha Healthcare Clinic. In an emergency, call your nearest hospital immediately.

Questions

Chronic Cough & Breathlessness — FAQs

When is a cough a red flag?

A cough with blood, significant weight loss, or breathlessness at rest needs prompt evaluation, as does any cough lasting more than three weeks.

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