A 2-year-old boy presents with a barking cough, hoarse voice and inspiratory stridor that worsens at night. He is febrile but maintaining oxygen saturations at 95% on air. What is the most appropriate initial pharmacological treatment?ANebulised hypertonic salineBOral dexamethasoneCIntravenous antibioticsDImmediate intubation and ventilationEOral salbutamolCheck my answer