From my experience, most neuro's tend to be uptight about strong pain killers in general.
When I finished the 30 10/500 Percocet I was given after my C-Spine fusion (on C5 and C6) I was still in pain, but the doctor (a neurosurgeon) did not want to give anything stronger than Ibuprofen. His nurse actually said that opiates were bad in that sort of situation and 800mg Motrin would be much safer
Heck, they wouldn't even give me 5mg Sonata for sleep knowing my history of sleeping problems.
I had a bad experience with a Neurologist and Migraines once before too. In the late 90's and into the early 2000's, I was getting painfully severe and long lasting headaches that seemed to be seasonal, starting in the fall and ending during early winter. I went to a Neurologist and told him I was getting headaches, so he gave me Imitrix. He didn't examine me, nor did he want to get any scans. To make a long story short, I had a severe allergic reaction to the Imitrix (my face and throat swelled up) on X-Mas eve! That was not fun at all! What was his reaction? "Well, I guess you shouldn't take it anymore" and then he chuckled. Hello?
Had he examined me and/or got some scans, maybe he would have realized that a crooked septum was to blame. The headaches were a result of allergies causing sinus drainage, but since my septum was crooked, the drainage would clog and give me an absolutely horrible headache. An ENT doctor was able to solve it surgically.