sphenopalatine ganglion (SPG) blocK
A sphenopalatine ganglion (SPG) block has been introduced as a quick, minimally invasive procedure. A local anesthetic, currently Marcaine but historically Lidocaine, is introduced intranasally for topical administration.
This involves placing a very thin plastic tube into the nose to insert numbing medication in and around the SPG. These devices, called catheters, may be more effective in reducing head and facial pain than the technique using cotton swabs and are less invasive than the injection technique.
The duration of pain relief varies from a few weeks to months. The procedure is repeated as required.