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Croup

Medically reviewed by Drugs.com. Last updated on May 6, 2024.

What is croup?

Croup is a respiratory infection. It causes your throat and upper airways to swell and narrow. It is also called laryngotracheobronchitis. Croup is more common in children, but adults can also get it.

What causes croup?

Croup is commonly caused by a virus. It usually occurs during the common cold season. Croup is spread by breathing in germs from infected people when they cough or sneeze.

What are the signs and symptoms of croup?

Croup begins like a cold with cough, fever, and a runny nose. Your symptoms usually remain mild during the first 2 to 4 days. After that, the following symptoms get worse at night or when you lie down:

How is croup diagnosed?

Your healthcare provider will ask you about recent cold symptoms. He or she will listen to your lungs. Your healthcare provider may recommend a chest x-ray to make sure you have no other conditions.

How is croup treated?

Treatment can usually be done at home. Your healthcare provider may recommend any of the following:

Treatment options

The following list of medications are related to or used in the treatment of this condition.

View more treatment options

How can I prevent the spread of croup?


Call your local emergency number (911 in the US) if:

When should I seek immediate care?

When should I call my doctor?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Learn more about Croup

Treatment options

Symptoms and treatments

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.