From Nerve Block to Relief: Diagnosing Headache Sources With Precision

Steve_carell02 Dec, 2025Health

A revolutionary diagnostic method involves injecting a local anesthetic at suspected nerve compression sites. If the injection temporarily relieves the headache, it strongly suggests that the pinched nerve is the source. This simple “nerve‑block test” can thus identify candidates for decompression surgery — often more reliably than MRI or other imaging.