Overview
Bronchitis is inflammation of the airways that carry air to the lungs, most often triggered by a viral infection after a cold. It brings a nagging cough that may bring up mucus and can last two to three weeks even after other symptoms fade. Acute bronchitis usually clears on its own; smokers and people with long-term chest disease can develop repeated or lasting attacks.
Symptoms
- Persistent cough, often with clear, yellow or green mucus
- Chest discomfort or a rattling feeling when breathing
- Mild breathlessness or wheezing
- Sore throat and blocked nose early on
- Tiredness and low-grade fever
When to see a doctor
See a doctor if the cough lasts more than three weeks, brings up blood, or comes with high fever, chest pain or breathlessness.
Causes
Usually the same viruses that cause colds and flu; less often bacteria. Smoking, air pollution, dust and workplace fumes irritate the airways and make attacks more likely.