I personally haven't had a nerve block yet; but the clinic I work at has many people coming in for occipital and/or trigeminal neuralgia. There's a lot of people who've had long-term success with the nerve blocks. But if nerve blocks and medication isn't keeping it in check, the a provider might consider surgical options.
I'm not a provider; just a clinic staff sharing my observations on this subject.

Hope you find it somewhat helpful 💕

Appreciate the thoughts mentioned about this.