Croup, also known as laryngotracheobronchitis, is caused by viral infections that lead to inflammation of the larynx (voice box) and trachea (windpipe). The swelling narrows the airways, resulting in the characteristic symptoms. Croup is most common in children between 6 months and 3 years old but can occasionally occur in older children. The illness is typically mild but can somet... https://rainbowchildrens.in/croup-symptoms-treatment-prevention