If that new (or any) drug works for you - great. But consider that there are no nerves that are responsible for the pain feeling in the brain itself. So we must conclude that the pain is psychological and should be treated that way.
For me the treatment was a routine to pull out my (silly) fears from being consciously or unconsciously suppressed and verbalize them. Once those fears were verbalized the headache would go away. So in my case the headache was a signal of an important thinking to be done that I have blocked away.
Verbalizing was initially easier by just writing down all thoughts even most silly on a piece of paper. Later I could do it in my head.
Maybe it’s a different thing in your case, still chances are you can find an exit “backtracking through the entrance into your condition”, so to say. The challenging part is to get the insight as to what your deadend looks like.