what is glycerol injection
Glycerol injection is the insertion of a chemical (glycerol) into the space around the trigeminal nerve near the brain where the nerve is bathed in spinal fluid. It is not selective for any particular part (division) of the trigeminal nerve and can treat pain in any of the three divisions.ost patients get pain relief from needle rhizotomy. Recurrence may occasionally occur but can be treated by either a repeat needle rhizotomy or another procedure. Rhizotomy refers to the partial damage of a nerve (trigeminal nerve), a maneuver that is well known to relieve the pain of trigeminal neuralgia.