Trigeminal nerve is a nerve which supplies sensations to the face area. In some people, this nerve can get irritated due to various reasons. Many have no cause while some may have an abnormal vascular loop in the brain area around the origin of this nerve. The patient has severe electric shock like pain in the face which comes in attacks lasting few seconds. If untreated, the attacks tend to worsen and appear with more frequency. Nerve blocks can give good relief and reduce the dose of medications.