A 3-year-old boy presents with fever, barking cough and inspiratory stridor when agitated. He has mild chest wall recession but is maintaining oxygen saturations at 97% on air and is drinking. What is the most appropriate initial management?AUrgent intubation and ventilationBSingle dose of oral Dexamethasone and observationCNebulised Adrenaline in all casesDOral Amoxicillin for presumed bacterial tracheitisENo treatment is requiredCheck my answer