i have no personal xp with TN, but have looked into it previously. revisiting and refreshing memory, i went along usual channels for me, landing on surgeries first this time.
Arterial compression of nerve is the primary cause of trigeminal neuralgia
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3889704/
"Most experts agree that the etiology is segmental demyelination of trigeminal sensory nerves in the nerve root or brainstem, and the demyelination is due to chronic compression of the nerve root where it exits from the pons [3, 6, 7]. Compression can be due to vascular abnormalities such as an aneurysm or arteriovenous malformation [8], and demyelination due to multiple sclerosis has been described [6]. Most theories, however, consider compression from an artery and/or vein (e.g., superior cerebellar) as the trigeminal nerve exits the pons as the cause [3, 5, 9]. Though vascular compression is the most widely accepted theory, other theories such as bioresonance have been examined [10].
Medical treatment for trigeminal neuralgia primarily consist of anticonvulsants [11]. Carbamazepine is the first-line treatment, and other that are used include phenytoin, oxcarbazepine and lamotrigine. Other medications that can be tried include gabapentin and baclofen. When medical treatment is ineffective, or a patient cannot tolerate the side effects, the primary surgical treatment is microvascular decompression."
sometimes surgery is just the answer. way different context but: blew my acl, needed reconstruction. ugh. had never gone under the knife or general anaesthesia prior. nasty recovery. years later, functional but not 100% by any stretch. glad i did it? absolutely.
given the drug options mentioned, my thinking goes to magnesium, potassium and possibly sodium. do you have serum levels for these on file?