I am also a musician and a singer. I know how hard it is when you want to make music but you know that you can't or you will trigger pain. Please forgive me if I am not fully understanding but I think you are saying that before the drugs, one side of your lips was different than the other but after the drugs they tested the same? Also, your lips feel like they are made of dust or that they have no muscle tone?
You have come to the right place for information. Also, you might want to try Facebook. The Trigeminal Neuralgia Support page. There are many people on there also that are always willing to help. Some of us are on both sites.
I am not familiar with those drugs either. Maybe we know them under a different name.
I don't feel of a pain. I feel that my lips as though are made of the test. The doctor checked 2 years ago sensitivity of the nervous terminations on the person and there was a non-uniformity in comparison on the right and at the left. After drug intake other doctor checked as well sensation from both parties the identical. What is MRI?
I am sorry to hear you have been going through this for so long and that it is affecting your music, it is hard enough for people to deal with in daily life without adding that element to it.
There are parts of your information I do not fully understand although I am trying.
You say you had wires in your lips. Was this acupuncture? Nerve conduction tests? I am not familiar with your drugs either. Was your diagnosis trigeminal neuraglia? Is it only in your lips? Do you have pain elsewhere? One side or two?
Have you had an MRI or other diagnostic tests?