For a landmark based approach of an occipital nerve block, start by palpating the mastoid process and occipital protuberance and imagine a line between them. The greater occipital nerve (GON) is 1/3 of the distance on the medial side. The lesser occipital nerve (LON) is 1/3 of the distance on the lateral side. Palpate the occipital artery to avoid it, and always aspirate before you inject. A 50:50 mixture of a local anesthetic (e.g. 2% lidocaine) with a corticosteroid (e.g. methylprednisolone or triamcinolone) can be used. Volume ranges in the literature, but 3 ml at each site should be adequate.