My wife suffered from frequent tension headaches, and decided to try and get it sorted again.
In the past, it had been GP -> Refer to Neurologist -> Go to ENT for sinus -> Get tired of it all and accept her fate.
The reasoning was that the Headache clinic would at least do almost all of it on the same day, and seeing that a neurologist can charge around R3K for a visit it wouldn't be much more expensive to go this route.
She already drinks LOTS of water, she does intense exercise 5x times a week, and it definitely helped and helps. She changed from a stressful job to a job with a different kind of stress, so yeah...
She described it as when she has a hangover level headache, that it's a good day. She was almost never completely debilitated though.
I read this thread about the mount piece, so she took her dental bite plate and a Dischem mouth guard thing with her to the appointment. The appointment was R6500 IIRC. This includes a consult with a neurologist, x-rays and then with Dr Shevel.
The plan was to go for the consultation, then come home and think about the recommendations. I read up about the procedures they do, and was not convinced.
After about an hour she came out, and wants to talk about money. Her neck muscles are so tense that her neck doesn't have the natural curve anymore. Even though she doesn't appear to be very upright or even have great posture, the x-rays show that her neck muscles are extremely tense.
He also injected her with local anaesthesia in the tendons at the base of the skull to confirm that that is where the headaches originate. It worked, she was pain free, and decided then and there she wants it done. Because he is the only Dr in the world that does this procedure, there isn't even a medical aid code, so its ~R20K for the procedure. Out comes the credit card and she has it done the same day.
The headaches are supposedly caused by nerves that form in the tendons at the base of the skull that should not be there. The Shevel procedures involves cauterizing those nerves under local anaesthesia, and you can't drive afterwards. Even injecting the local anaesthesia is quite unpleasant, and while the procedure itself isn't painful IIRC, it's not exactly pleasant either. She was in quite a bit of pain when the anaesthesia wore off, and only worked half day the following day because she felt quite crap. The area in the neck stays sore because of the bruising for quite some time.
So, the result? The nerves supposedly never grow back. The headache can also "move". This is because he might not have gotten all the nerves the first time as it doesn't seem to be a very precise procedure. Whereas her headache was the whole head in the past, it was only some parts of the head and less severe when the headaches came back. So she went back. The ~R20K covers all procedures for 2 years, so you don't pay again. The second time the pain was worse as her neck went into spasm afterwards. She was off work for 4 days and on a lot of pain meds, but she says it was worth it. Well, a few weeks afterwards she said it was worth it. There appears some nerves that he didn't get, as there is still a small part of her head that gets headaches, but much less severe than before and she will be going back soon to get those sorted as well.
Last night she looked all giddy and said that she is so stressed that her whole neck is tense and sore, but it stops at the neck, it doesn't go up to the head except for those two small sections. Headaches are also the exception rather than a daily occurrence.
I saw the mouth plate in Dr Shevel's office, and while I didn't ask him about it, it seemed to only cover the roof of the mouth, not the teeth? So its probably to keep the tongue in the position that keeps it from tensing up? A mouth guard for teeth probably won't have the same effect?
There is also another procedure that they do for headaches with another cause.
The reception area's whole wall is full of emails and articles about people he helped, some of them foreigners. One person from the UK tried doctors in Russia and Greece before the Headache clinic helped him.
TL;DR - Visiting The Headache clinic was worth it for my wife. The treatment wasn't exactly pleasant, but my wife says it's definitely worth it. One of those "I should have done it earlier" things.