Acute bronchitis is a short-term respiratory infection that may be referred to as a chest cold. The bronchi branch off the trachea, taking air from the outside into the lungs. In bronchitis, the bronchi become inflamed and produce more mucus.
Bronchi of Lungs
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In most cases, acute bronchitis is caused by a viral infection. There are times when it may be caused by a bacterial infection.
Factors that may increase your risk of getting acute bronchitis include:
the fluContact with a person with a respiratory viral or bacterial infectionSmokingExposure to second-hand smokeAllergies or asthma
Exposures to respiratory inhalants at work, such as:
AmmoniaChlorineMineralsVegetable dustsPoorly functioning immune system
Acute bronchitis may cause: Cough, with or without sputumIncreased sputum productionTrouble breathingWheezing
You may also have other cold or flu symptoms, such as slight fever, sore throat, and nasal congestion.
Your doctor will ask you about your symptoms and medical history. A physical exam will be done.
Tests are rarely needed. The following may be recommended if the bronchitis is severe or the diagnosis is not clear: Blood testsChest x-rays
or other condition is suspected
Sputum cultures to check for the presence of bacteria are rarely helpful.
Acute bronchitis can be treated with rest and medications. It can take up to a month for the cough to go away.
Your doctor may recommend:
Over-the-counter medications to relieve discomfort and reduce fever
Note: Aspirin is not recommended for children with a current or recent viral infection. Check with your doctor before giving your child aspirin.
Staying hydrated by drinking plenty of fluids throughout the day to help make your cough more productiveInhalers—to improve symptoms in adults with a history of asthma
Antibiotics are not used for treatment because acute bronchitis is usually the result of a viral infection.
Avoid using cough suppressant medication. Coughing is necessary to clear mucus from your lungs. The Food and Drug Administration (FDA) recommends that cough supressants not be used in children less than 2 years old. The FDA also supports not using them in children less than 4 years old.
To help reduce your chance of acute bronchitis: Use proper handwashing hygiene, especially if you are in contact with someone who is sickAvoid contact with people who have respiratory viral or bacterial infections.If you smoke, talk to your doctor about how you can successfully quit. Smoke weakens the lungs' resistance to infection and increases recovery time.
About antibiotic use and resistance. Centers for Disease Control and Prevention website. Available at:
http://www.cdc.gov/getsmart/community/about/index.html. Updated September 13, 2013. Accessed February 14, 2014.
Acute bronchitis. American Academy of Family Physicians Family Doctor website. Available at:
http://familydoctor.org/familydoctor/en/diseases-conditions/acute-bronchitis.html. Updated September 2013. Accessed February 14, 2014.
Smith SM, Fahey T, Smucny J, Becker LA. Antibiotics for acute bronchitis.
Cochrane Database Syst Rev.
Last reviewed May 2016 by David Horn, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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