I've had CH for about 10 years now, and discovered Cafergot about two cycles ago.
I've been to a half dozen doctors in the US, and only one of them even knew what CH was. Despite that 'headache specialist' being really cute, she was clueless on how to treat it.
So I was on my vacation one day in Thailand, and being desperate like any CH sufferer I decided to visit one of those random 3rd world questionable doctors that don't speak much English. He charged me $30 for the visit and told me to take Cafergot.
Turns out you can buy Cafergot for about 30 cents/pill without a prescription at nearly every pharmacy in Thailand. I gave it a try and WOW, it works! My headaches hurt only 20% as much, and last only 20% as long, as compared to without the pill. I still suffer from CH, but man my quality of life during my cycles have infinitely improved
The best part was when I walked into the next pharmacy and bought out their entire stock of Cafergot for $30 (two years supply for me). The Thai pharmacists gave me funny looks but didn't ask any questions, as they were probably trying to figure out what a white guy would do with all those pills lol
Anyway, I definitely recommend giving Cafergot a try for CH if you haven't already.