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Most cases of acute bronchitis go away in 2 to 3 weeks, but some may last 4 weeks. Home treatment to relieve symptoms is usually all that you need. Here are some things you can try that may help you feel better:
How long does bronchitis last? A cough lasting 5 or more days suggests acute bronchitis as a cause; acute bronchitis usually lasts about 10 to 20 days. People with recurrent acute bronchitis may develop chronic bronchitis. Chronic bronchitis is defined as a cough that occurs every day with sputum production that lasts for at least 3 months, 2 years in a row.