Bronchitis

Also called Acute bronchitis or Chest cold

Acute bronchitis is an infection of the main airways of the lungs, usually caused by a virus, often after a cold or flu. It causes a cough that may bring up mucus and can last up to 3 weeks. It usually gets better without treatment.

Last updated Nov 9, 2026

What it is

Antibiotics usually do not help because most cases are viral. Rest, fluids and painkillers for aches are the usual care.

A cough that keeps coming back every winter, especially in smokers, may be chronic bronchitis, which is part of COPD and needs a check-up.

Common signs

  • A cough, which may bring up clear, yellow or green mucus
  • Sore throat and blocked nose
  • Aches and tiredness
  • Chest tightness or wheezing

How it is usually diagnosed

  • Usually diagnosed from symptoms and listening to the chest
  • A chest X-ray if pneumonia is suspected

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Notes of each episode, especially if they recur
  • Chest X-ray reports, if done
  • Breathing test results if COPD is suspected

Questions to ask your doctor

  • Do I need antibiotics?
  • How long should the cough last?
  • Should I be checked for asthma or COPD?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Severe breathlessness, coughing up blood, chest pain or confusion: call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

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