Croup is an infection that makes the inside of your child's throat swell up. This makes it hard for your child to breathe. It can be scary for both parents and children.

Croup is common in young children. Most cases of croup are mild. But croup can get worse and stop your child from breathing at all. Call the doctor if you think your child has croup and he or she is having a hard time breathing.

Croup is usually caused by a virus that infects the voice box and windpipe. The main sign of croup is a barking cough. It may start with a cold. Most children with viral croup have a low fever. But some have temperatures up to 104°F or 40°C.

Here are some signs your child may have croup:

Call 911 or an Ambulance Right Away If… …your child:

The above are all signs of severe...

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