Final answer:
Trigeminal neuralgia is a condition characterized by excruciating pain lasting seconds to minutes, usually in the facial region. The pain is sudden and shock-like, and can be triggered by everyday activities. It is caused by a disorder of the trigeminal nerve.
Step-by-step explanation:
Trigeminal neuralgia is characterized by attacks of excruciating pain that last from seconds to minutes, usually in the facial region. Trigeminal neuralgia is a neurological disorder that affects the trigeminal nerve, which is responsible for sending sensations from the face to the brain. The pain is often described as a sudden, shock-like sensation and can be triggered by activities such as talking, eating, or brushing teeth.