There are two occipital nerves: the greater occipital nerve and the lesser occipital nerve. The greater and lower occipital nerve is located between the 1st and 2nd cervical vertebrae (the top of the spinal cord) and runs up the base of the skull to the scalp. If you are experiencing pain located in the beack of your head or the side of your head, you may be responsive to this procedure. This pain may be felt as a headache, migraine, or burning, shooting, or zapping pain. For further information on how nerve blocks work, how they are performed, and what to expect after, please click here.