Laryngotracheitis
Croup is a childhood condition that affects the windpipe (trachea), the airways to the lungs (the bronchi) and the voice box (larynx).
Information about croup symptoms, including bark-like cough, difficulty breathing and rasping breath (stridor).
Information on the causes of croup, including flu viruses. The infection causes the larynx (voice box) to become swollen and the trachea (windpipe) to become blocked.
A GP can diagnose croup by studying your child's symptoms, particularly the sound of their cough. Croup typically causes a barking cough and rasping breathing (stridor).
The treatment of croup depends on how severe the symptoms are. Most cases do not need treating as the condition usually gets better on its own.
Complications that develop as a result of croup are rare.