By eHow Health Editor
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Trigeminal neuralgia is a nerve disorder that causes facial pain. It occurs when the trigeminal cranial nerve is irritated, interrupting sensory and motor functions, such as chewing. The pain is sharp, stabbing or burning and can last from seconds to hours. Simple things can initiate an attack, such as brushing teeth or eating. The ability to cope with trigeminal neuralgia depends on controlling pain many describe as "excruciating."
eHow Health Editor