Donald Corenman, MD, DC
Post count: 8434

A greater occipital nerve block (GON) is not the same as a facet block however a GON will help to indicate if the nerve itself is involved. WIth no relief, it is unlikely that the greater occipital nerve is causing your pain. In my practice however, I will still have the patient undergo facet blocks at C2-4 as these facets can also cause base of skull and posterior headache without greater occipital nerve involvement.

Dr. Corenman