Glycerol injection

I have am scheduled to have atypical trigeminal neuralgia and scheduled for a glycerol injection next Friday for the right side. I have tried to do some reading on what the process will be like but haven't been able to locate anything that explains it. Has anyone on here had it done and could explain it to me better than the dr did?

Thanks

http://www.livingwithtn.org/main/search/search?q=Glycerol+injection

Here are a few posts I found by using the search feature …not sure if you’ve done that already.
I don’t know anything about it, but wish you well for your procedure!! Hope it provides you with long lasting relief! Check in and let us know how you’re doing!!
(( hugs )) Mimi