Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Trigeminal Neuralgia ?
    ### Response:
    Trigeminal neuralgia (TN) is a type of chronic pain that affects your face. It causes extreme, sudden burning or shock-like pain. It usually affects one side of the face. Any vibration on your face, even from talking, can set it off. The condition may come and go, disappearing for days or even months.
    