From my understanding, opioids are not helpful for classic TN pain. I have a fairly constant, lower level pain, and I did find Percocet to be helpful when things got bad. It certainly didn’t erase the pain, but it made it more of a “weird sensation” that was bearable, rather than just pain.
What I did figure out though, was that the Percocet was actually making my situation worse. I was having a lot more burning type pain, and pain in the middle of the night that kept me awake for a good part of the night. It became a vicious cycle of taking more opioids to knock out the increased pain, then having more to deal with. Not long after I quit them completely, the burning type pains were reduced to almost nothing. This correlates with new studies that show that opioids do actually increase pain sensations over the long term.
For that reason, I could never recommend them, except in an extreme “pain emergency”. I have actually found Valium to be much more effective for me when things are unbearable. I would encourage you to explore other meds for pain relief, see what is working for others with TN. Sometimes things are additive, every med or thing you do helps a little, but together they help a lot.