How long does a glycerol nerve block usually last?

I had a glycerol nerve block on April 9, and yesterday was the first day post-op that I had really bad nerve pain, like before the surgery... I'm now worrying that it wore off already. Is this possible?

I was told the results aren't always immediate. How did yours turn out?

The results definitely weren’t immediate. However, I was pain free for about two months. I ended up having an MVD on that side 5 months later.