Nerve block

A nerve block is a procedure where an anesthetic, sometimes combined with a steroid, is injected near a specific nerve or group of nerves to reduce pain. 

It can be used diagnostically — to confirm which nerve is causing pain — or therapeutically, to provide temporary or sometimes longer-lasting relief. Nerve blocks are common for conditions like sciatica, facet joint pain and certain neuropathic syndromes. They also help guide whether more advanced interventions, such as continuous radiofrequency (CRF) or PRF, might be beneficial.