Do you have information on the ' stellate ganglion block' injections ?

CRPS: Used for treatment of rsd or complex regional pain syndrome, injection blocks the parasympathetic nerve flow to the upper extremity on the side of the injection. If patient has reflex sympathetic dystrophy the injection should reduce or eliminate their symptoms.

Stellate Block: A stellate ganglion block blocks the sympathetic nerves that go to the arms, and, to some degree, the sympathetic nerves that go to the face. This may in turn reduce pain, swelling, color and sweating changes in the upper extremity and may improve mobility. It is done as a part of the treatment of Reflex Sympathetic Dystrophy (RSD), Sympathetic Maintained Pain and Complex Regional Pain Syndrome.