An epidural injection is given into the space that surrounds your spinal cord (called the epidural space). A spinal injection is given directly into the fluid that surrounds your spinal cord (called the cerebrospinal fluid). The injection can be a local anaesthetic or a medicine to relieve pain.
This is a companion discussion topic for the original article at https://patient.info/treatment-medication/anaesthesia/nerve-damage-after-anaesthetic