I'm glad you've found something that works for you.  When you tried Oxygen, did you try 15 liters per minute or more and a non-rebreather mask?  If not, you should give it another try.

Wishing you well,

Ray

Sorry i apologise, im new on here

I Have been suffering for 14 years, i get CH on average twice a year, they last between 40 to 70 days,2-3 daily/ mainly nightly. I have tried almost everything, but now im also on verapamil,  just slightly different doses i also carry round with me a sumatriptan injection, 5mls, this does not always work, but when it does its fantastic, i know most of you will have tried almost everything and will probably see this as a migraine aid, but it is also for CH. mine lasted on average 4 hours a time,  which resulted in 10- 12 hours a day in agony.  now when they work it will last about 20 mins, the only problem is that you do look like a pin cushion for a while. Not trying to teach anyone to suck eggs, but depending on your GP they dont always tell you about the injection as it is so expensive. please dont confuse this with the tablet as that does not work, also on the plus side if you are sick like me, you do not bring up your medication.
Hope this helps someone