That would do it for my insurance company. Just a heads up, while you are considering going forward; Botox doesn't break a migraine that is already present. In fact, the day or two after your injections are sure to be doozies because the injections irritate the nerves. It takes a few weeks for the affects to set in. I started taking a fiorcet before my injection appointments, to prevent me from tightening up with the pain of it, and that seems to help a lot. I would ask first of course. I don't know your full picture. but I really suggest at least a few advil before your appointment.
Also, the affect when your muscles freeze is seriously weird. I watched my forehead stop moving as the day went on. It was about one week after the first injection. I thought it was really terrible at first, as I'm used to being very expressive with my eyebrows, but I'm cool with it now. It's not bad. It's just different.