What is Trigeminal Neuralgia and Why it is Triggered? Trigeminal neuralgia is widely regarded as being one of, if not THE most painful neurological condition known to humankind. If you have ever got a grain of sand or eyelash in your eye, you know how unpleasant that is. But now imagine that it never goes away. If you have never experienced the pain of trigeminal neuralgia, you are fortunate. Imagine setting a fire on the branches of the nerves in your face, mouth eyes, or te