Sphenopalatine Ganglion Nerve Block
What is an SPG block, and how can it help my headaches? The sphenopalatine ganglion (SPG) is a nerve bundle located deep in the face, behind the root of the nose; it is part of the autonomic nervous system. For a long time the SPG has been a target for the treatment of severe headaches.… Continue Reading Sphenopalatine Ganglion Nerve Block