Hi Hershey Lover,
Welcome to NeuroTalk.
I like the article shared by Kiwi.
My family shares the familial form of hemiplegic migraine. The article explains the difference between the familial form and the sporadic form. The difference being one is genetic, one is not.
I had not heard of the type of treatment you mention for hemiplegic migraine; however, people in my family respond to medications to prevent/halt ongoing hemiplegic migraine episodes.
I'm assuming your husband either does not respond well to the medications for prevention/treatment or is intolerant of the available medications.
Will look for you in the headache forum below.
Again, welcome!
DejaVu