Which of the following is NOT a standard treatment for croup?

• A. O2 therapy
• B. Cool aerosol for swelling
• C. Racemic epinephrine
• D. Antibiotics

Answer: (D)

Croup management focuses on reducing airway inflammation and improving oxygenation in a viral laryngotracheitis. Since most cases are caused by viruses, antibiotics don’t help and don’t shorten the illness, so they’re not part of standard treatment. They should be saved for scenarios suggesting a bacterial diagnosis or superinfection (for example, if there are signs of bacterial tracheitis or epiglottitis), or other comorbid conditions.

In typical croup, supportive measures like ensuring adequate oxygenation and using anti-inflammatory therapy such as a systemic corticosteroid are key, and inhaled epinephrine is used for moderate to severe swelling to rapidly reduce airway edema. Humidified or cool mist therapy has historical use but is not considered essential care in modern practice.