apologies for delay in response. Welcome to the forum.
Apparently no one has had the injections.
Here is a link to a site that is a .org lots of info on this. I hope this helps you.
Please do let us know how you make out..
Moderator - Depression
"...when the gift of sight is cause enough for jubilation."
Billy Collins from the poem. HIGH
DX: reverse Trigeminal Neuralgia;Cluster headaches; Atypical face pain;Hemicrania Continua; raynauds;complex PTSD; recurring MDD,disassociative disorder;