What can cure bad migraines?

Well, she's obviously gone through what the medical community has to offer. With varying success.

There are other headache management alternatives, here's one. Something not expensive, and easily applied. And the stressed feelings might be nice to be dealt with as well. Notice that the first site applies to headaches, along with "nervousness and anxiety".

Try putting two tennis balls in a cotton sock, tie it off, and lay on it, so they are at the spots shown in the first site. Or use your hands and thumbs like shown. Firmly pressing at the base of the skull with the thumbs. Last site tells more, along the same lines. Or try about 3 inches of rice in a couple of sock toes, tie them off, cut the extra off, put them in a cotton sock, tie it off firmly, and you can warm it in the microwave. It applies pressure and warmth to the designated acupressure points for headaches, including migraines, but also for STRESS.

Might as well deal with headaches, including migraines, and stress the way that has worked for the Chinese for a couple thousand years. Notice the photo in the first site, showing the man with his hands holding his head, with his thumbs pressing upwards on those sites. Same points for the tennis balls, etc. that I mentioned.