Hi Jen, CHfather is one of the most knowledgeable, experienced people you will find when it comes to CH. Right now you need to think about the difference between aborting an attack and then preventing one. Your first priority should be to get oxygen now. Please read up on the attachments from CHfather....get the mask first then focus on the oxygen. Every area/doctor is a little different, some of us have trouble getting medical oxygen and just use welding oxygen. Once you have it you have to practice your breathing technique .....read the files and watch the videos. Oxygen is used to abort an attack, it will not prevent one. When used properly it can abort an attack within 10 minutes without side effects. Some of us have developed breathing techniques that can abort even quicker.
Do not waste your time with immitrex/sumatriptan pills or sprays, the injectable sumatriptan is a good abortive but leaves you feeling really lousy afterward and can only be used twice a day.
I am a little harder on the medical community than most here. I went through 5 different neuro's and only one provided temporary relief. Most of them have limited knowledge of CH and keep throwing hand me down drugs developed for other purposes at you while you continue to suffer.
Ask questions, there are plenty of good folks here who will help you. This is a damned awful disease that must be brought under control and closely managed if you want your life back.
Please get oxygen ASAP then come back to us with questions.....keep reading the files here you will learn a lot.