Inclusion Criteria:  Patients with a chief complaint of craniofacial pain (migraine, cluster headache, trigeminal autonomic cephalgia, sphenopalatine ganglioneuraligia, paroxysmal hemicrania) who has Stanford Pain & ENT clinic visit  Exclusion Criteria:  age <18 or >80 pregnant women economically disadvantaged (not able to afford clinic visits/treatments) decisionally impaired (unable to obtain informed consent) has allergy to bupivacaine unable or unwilling to participate plans to participate in another clinical study at any time during this study