Is a stellate ganglion block appropriate treatment for post herpetic neuralgia, along the trigeminal nerve. ?

Yes indicated: Herpes zoster ' shingles' after blisters healed in some will have severe disabling pains will lost for months and months which most likely you have involving one of the trigeminal nerve branch, the virus stays in nerve root for ever. Image guided cervicothoracic sym. Ganglion block along with t.N block most likely will help your pain , is relatively low risk procedure in trained hands.

Possibly: Stellate nerve blocks are often used to treat peripherial nerve problems caused by injuries or trauma. They are designed to block sympathetic nerves. The trigeminal nerve is a cranial nerve, that does not go through the spine or neck, so i don't know if the stellate block would help. The sympathetic nerves do contribute to eyelid motion and facial flushing, so it may be worth a try.