At Visit 2, the Baseline Headache Diary will be reviewed and those subjects continuing to meet eligibility will be dispensed a 6-week Treatment Period Diary and complete Before Procedure questions to include the Pain Intensity Numeric Rating Scale (NRS), the Modified Pain Characteristic Questionnaire, and a baseline Headache Impact Test-6 (HIT-6), have vital signs completed, and the medical, headache, and medication history updated. Subjects will be randomized 2:1 to Group A or Group B. Group A will receive treatment with 0.3 mL of 0.5% Marcaine delivered bilaterally with the Tx360™ device to the mucosa associated with the SPG. Group B will receive saline substituted for Marcaine delivered bilaterally with the Tx360TM device to the mucosa associated with the SPG.