What is a common symptom of croup in children?

A resonant barking cough is a hallmark symptom of croup in children. This distinct cough is often compared to the sound of a seal barking and is caused by inflammation in the upper airway, which can lead to narrowing and obstruction. The cough is typically accompanied by stridor, a high-pitched wheezing sound, particularly when the child inhales. This symptom usually occurs alongside other signs of croup, such as hoarseness and difficulty breathing, especially during nighttime. Identifying this barking cough can help distinguish croup from other respiratory illnesses, making it crucial for proper diagnosis and treatment.