Study Status: RECRUITING
Recruit Status: RECRUITING
Study Type: INTERVENTIONAL
Official Title: Anesthetic Greater Occipital Nerve Blockade in Veterans With Post-Traumatic Headache: Sub-study 1
Brief Summary: The acute and subacute sensations that occur on the scalp with injection of different concentrations of bupivacaine for grater occipital nerve blockade will be compared.
Each Veteran participant will be randomized to receive three different concentrations, which will be injected one week apart each.