Diet

I've been using the Migraine Summit's elimination diet for almost 2 years, still having chronic daily Migraines but with somewhat less severity some days. When I showed it to my neurologist he barely glanced at it and said he only does drugs, gave me an RXt & said goodbye. I had a bit of hope until I tried to get the Rx filled which is far beyond my means at $700/month! So now I'm reading a book called The Migraine Miracle which purports to get relief for good by eliminating sugar & gluten. Anybody have experience with this diet? I'm open to all reasonable suggestions. With thanks!