The stellate ganglion is a group of nerves located at the 6th and 7th cervical vertebrae in the front of your neck. These nerves provide feeling in your face and upper extremities. Along with treatment for CRPS and Shingles, this black may also help reduce pain (and swelling) related to the head, neck, chest, or arm. For further information on how nerve blocks work, how they are performed, and what to expect after, please click here.