The "Stellate Ganglion" is a cluster of nerves in the cervical region (neck). It is a part of the Sympathetic Nervous System which is a part of the Autonomic Nervous system.
The ganglion block has been used before. Mostly in "Complex Regional Pain Syndrome" or "Sympathetic Reflex Dystrophy" as well as hyperhydrosis, angina, post-herpetic neuralgia of face and neck, and others.
There are some serious complications due to the various other structures around the ganglia including carotid artery, jugular vein, apex of lungs, phrenic nerve.
Thus the complications include: Horner syndrome, hemidiaphragm paralysis, dysrhythmia, heart block, hematoma, pseudoaneurysm, pneumothorax, Sz, etc...
Anyone know how Seizures or heat block or dysrhythmia happens?
You decide if it is right for you.
As for me, I like my Sympathetic Nervous System.