Hi! That thread is from 2017/2018. This is my real world experience: I have had chronic cluster headaches since 2018. I saw the top 3 neurologists in Houston. I saw Dr. Pam Blake, and I am currently seeing for the past 3 years Dr. Mark Burish. Neither doctor was able to offer ANY RELIEF AT ALL. NONE. Just a bunch of drugs. I used Sumatriptan orally until it went past that (the rebound lesson with Sumatriptan if you take too much, is very harsh!) Dr. Burish has a standard list of medications including Gabapenton, steroids and a few others that had nothing but a bad effect on me. I tried Mushrooms on several occasions, and LSD as well. Nothing had ANY effect. The things that helped for awhile were Baclophen (muscle relaxer), Rizatriptan, and Naratriptan. Those offered a little relief for awhile. I was having at least 5-6 HARDCORE headaches a day. Even with Oxygen it was super bad. I was using at least 3 M sized tanks a week to try and fight the headaches. I saw the video I posted and called Dr. Shevel the next day. I got my money together and flew there with my wife 2 weeks later. Dr. Shevel is one of the most caring and compassionate people I have ever met. He gives you his personal cell phone and insists you call him as you get treated. He charged me 9500.00 US for all treatments. I was there for 3 months. I could have done it in a month or so, but I wanted to be sure. I got 15 or so treatments, it is good to wait between treatments and switch sides to spread out the treatment area and let it heal. Cluster headaches are caused by nerves growing in tendons where the muscles attach to the back of the skull. He zaps the tendons and kills the nerve that has grown into the tendon. It is a purely "mechanical" solution that SAVED MY LIFE. The walls of the clinic have HUNDREDS of letters on them ALL of the letters say basically "Thank you for curing me, I have my life back now" (I have photos if you have doubts). I am a big Viking guy. I am 6-6, 240lbs, Norwegian decent. I have very thick, tough tendons that require several "zaps" to kill the nerves. The thing is this works. I have my life back. I am happy to share more of my story with anyone who will listen. I have had Cluster headaches as bad as they get. This was the ONLY thing that worked. Period. I was pain free for 10 months. I am going to go back for a "tune up" in a few weeks. I used to have 95% of my headaches on the Right side. I never get them on the right side now, I do get 1 a day on the Left side, depending on what I eat that day and how stressed I am. I need to get 2 spots zapped on the left side to kill the new nerves that grew back on the Left. There is NO CHARGE for follow up visits. Again Dr. Shevel only does his clinic and he genuinely cares about removing your pain. He speaks 17 languages and is the most compassionate, dedicated Doctor I have EVER met. I am happy to share more of my story if anyone wants real relief, or wants some tips and tricks for a chronic cluster headache survivor. There is a cure. I promise you it works. I am living proof. There are hundreds of people just like me.