Trigeminal Neuralgia Understanding the Facial Pain Pathway This illustration explains trigeminal neuralgia, a condition that causes intense, sudden facial pain due to irritation or compression of the trigeminal nerve (cranial nerve Neuralgia: Understanding And Managing Nerve Pain Injections for Trigeminal Neuralgia Elie Sader, MD Trigeminal Neuralgia Expert Surgeon Aaron Cohen Gadol, MD Trigeminal Neuralgia Pain and Erenumab Trigeminal Neuralgia Association Australia