Nerve blocks are injections of medication onto or near nerves, which block pain signals. Nerve blocks are used to relief pain from a variety of conditions, from a broad range of locations on the body. The medications that are injected include local anesthetics, steroids, and opioids.

OCCIPITAL NERVE BLOCK
The greater and lesser occipital nerves run from the area where the spinal column meets the neck, up to the scalp at the back of the head. When these nerves are injured or compressed, a person may feel piercing, throbbing, or electric-like chronic pain in the upper neck, back of the head, and behind the ears, usually on one side of the head. A nerve block can help alleviate this pain.