cluster headache and SPG (sphenopalatine Ganglion block) Block

I have been a strong advocate of utilizing sphenopalatine ganglion blocks to treat cluster headaches, acute and chronic daily migraines, sinus headaches and chronic daily headaches. The following Pub Med abstract is a case report on utilizing lidocaine (an extremely safe drug) to do SPG blocks for cluster headaches.The Ptsosis (wikipedia...Ptosis (from Greek Ptosis or πτῶσις, to "fall") is a