Your 1st post was written some time ago and I'm thinking it's not an issue by now, but in the future, in such a situation where you are unable to get into your dr for days and you're starting a cycle and have NO real help available, go to another dr - even urgent care or a walk in clinic. 

You deserve help - you deserve relief.  we all only have so much strength and CH will take it out of you and you need to start caring for yourself as soon as you can.  In general, I'm not at all a fan of urgent care clinics, but they'd at least be able to give you a prescription for maxalt or imitrex if not o2 and heaven help us, this situation is fairly urgent if any is...

Sometimes your pharmacist can give you a "bridge" Rx - they'll deduct it from your next prescription, but you can get a small amount to tide you over until you can talk to your doc (which doesn't necessarily have to be done in person). Ask his office to have him or her give you a call, then they can possibly phone in a script.