Trigeminal neuralgia is inflammation of the trigeminal nerve, causing intense facial pain. It is also known as tic douloureax because the intense pain can cause patients to contort their face into a grimace and cause the head to move away from the pain. The obvious movement is known as a tic. Because the exact pathophysiology remains controversial, the etiology of trigeminal neuralgia (TN) may be central, peripheral, or both. The trigeminal nerve (cranial nerve V) can cause pain, because its major function is sensory. Usually, no structural lesion is present (85%), although many investigators agree that vascular compression, typically venous or arterial loops at the trigeminal nerve entry into the pons, is critical to the pathogenesis of the idiopathic variety. This compression results in focal trigeminal nerve demyelination. Transcranial magnetic stimulation appears promising, but results are still scarce. Adjunct treatments such as mechanical, electrical, and thermal stimuli sometimes modify pain with fewer adverse effects than medication. Self-adhesive bandages may also be used. Ireland people around 121,067 among the total population are suffering from this disease that is 2.48% of the population effected.