A 3-year-old child presents with a barking cough, inspiratory stridor and hoarse voice. He is alert with mild chest recession and oxygen saturation 96% on air. What is the most appropriate initial management?ANebulised Adrenaline and intubationBSingle dose of oral Dexamethasone and observationCHigh-dose oral SalbutamolDAntibiotics and chest physiotherapyEImmediate heliox and ICU admission for all casesCheck my answer