A 9-year-old boy presents with acute onset inspiratory stridor, barking cough and hoarse voice, worse at night. He is afebrile with mild work of breathing. What is the most appropriate initial management?AImmediate intubation and mechanical ventilationBSingle dose of oral or nebulised corticosteroid and observationCBroad-spectrum IV antibioticsDBronchoscopy to exclude foreign body in all casesERacemic adrenaline nebulisers for all mild cases onlyCheck my answer