<unk>  is a procedure involving injection of steroids or anesthetics into regions of the greater occipital<unk>  and the lesser occipital<unk>  used to treat chronic headaches. These<unk> s are located in the back of the head near in the suboccipital triangle along the line between the inion and the mastoid process. They innervate muscles in the suboccipital and posterior scalp regions. The injection will either block pain signals or reduce swelling and inflammation in these regions depending on the choice of injection. The procedure is helpful in treating occipital neuralgia and chronic headaches that arise from the neck. __TOC__
Occipital nerve block
Retrobulbar block
Occipital cryoneurolysis
Brachial plexus block
Baroreflex activation therapy
Sympathectomy
Sciatic nerve block
Inferior alveolar nerve anaesthesia