Hi - I'm so sorry, but this it totally outside my realm of experience and research. There are migraine/pain specialists in the medical field, and she might be able to find real help there. There are even chronic pain clinics that specialize in this, and that would be a good place for her to start.I'd just search for books on migraines at amazon and see what pops up. I've heard that red wine and aged cheeses can trigger migraines, and I think there are other foods on that list. I'm sure there's some good books out there on this subject - wish I had some suggestions for you.- Heather