A 6-year-old girl drank some coloured fizzy drink which gave her a feeling of pressure in the throat. 30 minutes later the child's lips got swollen, then edema gradually spread over the whole face, laryngeal breathing became difficult. The child is excited. Ps- 120/min, breathing rate - 28/min, breathing is noisy, indrawing of intercostal spaces is observed. What basic aid is most appropriate for the restoration of laryngeal breathing?