i know imigrain worked for me 10 years ago when I actually referred to a neurosurgeon about the migraines, who then made me realise it was linked to AF. He gave me enough for 2 nasal squirts as it was $70 a pop at that time.

I have since investigated the costs, and it hasn't got a hell of alot cheaper, so there is no way I will probably be able to afford imigrain long term anyway.