Yes, bronchitis can be contagious. Acute bronchitis is typically caused by infections such as the seasonal cold, flu, or viruses. It can also occur occasionally due to bacterial infection. Most people recover from acute bronchitis within a few days or weeks. On the other hand, chronic bronchitis caused because of underlying diseases like asthma and COPD is not contagious.¹

Bronchitis is usually not dangerous, but it can cause problems in some cases. Acute bronchitis patients feel better on their own in a duration of few weeks. However, chronic bronchitis lasts longer. In this case, breathing becomes difficult because of the inflamed airways and causes complications. If no improvement in symptoms is observed, it is important to see a doctor.¹

Bronchitis treatment depends on the type. Acute bronchitis usually gets better on its own, but cough medicine can be used, drinking warm tea, and keeping a humidifier nearby helps. Antibiotics are only required for bacterial infections. The treatment of chronic bronchitis majorly focuses on how to manage the symptoms. This includes quitting smoking, taking medicines to clear airways, using oxygen therapy, and learning breathing techniques like pursed-lip breathing.¹

Taking few steps can make patients feel better. You should get enough rest daily, and drink plenty of fluids. You can also use a humidifier. You should not smoke, stay away from second hand smoke and irritants like dust, fumes. If the cough persists or worsens, you should consult a doctor.³

Bronchitis can last for different lengths of time depending on the type. Acute bronchitis typically goes on its own within a few weeks, although the symptoms may last less than 3 weeks. Chronic bronchitis is long-term and can persist for months or even longer, especially if not properly managed.^{2 3}

1. https://www.nhlbi.nih.gov/health/bronchitis Accessed in May 2025
2. https://www.cdc.gov/acute-bronchitis/media/pdfs/Bronchitis-508.pdf Accessed in May 2025
3. https://www.lung.org/blog/bronchitis-frequently-asked-questions Accessed in May 2025