Yes, I have many times!!! - Absolutely brilliant for me gives me a couple of weeks pain break, some people get a lot longer, everyone responds diferently.
I find that it is lovely not having so many meds for a couple of weeks or so, makes me feel more myself. I used to look forward to that two week break every 3 months!!!
I don't need it now as I have something more permanent called the 'Occipital Nerve Stimulator Implant'. I will be happy to answer any questions you have.
I wish you all the best with the nerve block.
Co-Moderator of the Migraine/Headache Forum
DX: Hemicrania Continua, Chronic Migraine, IBS, Allergic Rhinitis and Heart Murmur
Meds: Imigran Injections, High Flow Oxygen, Mebeverine, Lansoprazole, Nasonex and Clarityn