Female patient, 16 years old, submitted to laser ureterolythotripsy for ureteral stone resection under sedation and spinal block with 5% lidocaine (50 mg). Minutes later, patient presented erythematous pruriginous plaques on neck and trunk and mild eyelid and lip edema. What is the likely diagnosis?

How can you treat this patient? *This case is form Docplexus editorial team for educative purpose only Source: SciELO Stay connected the answer will be published in next 48h!