What is a common symptom of laryngotracheobronchitis (viral croup)?

In the context of laryngotracheobronchitis, commonly known as viral croup, a barking cough is a hallmark symptom. This type of cough is characterized by its distinctive, harsh, and stridor-like sound, resembling that of a seal barking. The cough results from inflammation and swelling of the laryngeal area due to a viral infection, which constricts the airway and leads to this specific presentation.

This symptom is critical for diagnosis, as it helps differentiate viral croup from other respiratory illnesses that may present with cough. The barking cough typically worsens at night, which can be particularly alarming for caregivers and is often accompanied by other symptoms such as hoarseness and labored breathing. Recognizing this symptom is crucial for effective management and reassurance for patients and their families.