There is some medication out there that will give you either total relief or partial relief, just be patient. Anti-Depressants, other Anti-Seizure medications and things as exotic as Neurostimulation devices have been used to stop migraines.
Also, have you had an MRI of the head to be sure everything is OK? www.migraines.org/
Try to find web sites, like the one I listed above, that specialize in migraine research. Write to them, tell them you have refractory migraines and you need to find someone that has more experience in treating them, ask for assistance or referrals to other centers or doctors in your area.
Most doctors are good people honestly interested in helping others, but sometimes things may arise, such as your problems, that are beyond their experience, but there are others that can help.
Lastly, you may want to start a diary of symptoms, the time they occur, the severity, and you may want to start to look for triggers, and record them as well, such as other drugs, over-the-counter, prescript
ion, or recreational, as well as alcohol, coffee, chocolate, cigarettes, and a myriad of other things. Keeping a diary may help you or your doctor connect the dots. Hormones may be an issue, be sure you have a complete blood work-up, including thyroid and other things doctors would know best.