Method: Randomized controlled trial comparing a group of children receiving the module with augmented reality of the Mini-Docs and drug pain management (nitrous oxide and medications), with a group of children receiving the usual care of pain management that combines drug pain management (nitrous oxide and medications) and distraction techniques. The device with the augmented reality module allows the child to add virtual content to the real images of the care. The pain will be assessed for each child 10 minutes after the injections, using a self-assessment scale (the Faces Pain Scale - Revised) or a heteroevaluation scale (the Face Legs Activity Cry Consolability scale given by the nurse). The study will be conducted in two centers of physical medicine and pediatric rehabilitation of the French Red Cross (Paris and Lyon).