Historical considerations of the diagnosis and treatment of facial pain.

Most forms of facial pain remain neurologic disorders that, although not life threatening, can be debilitating. Modern descriptions of the various forms of facial pain according to their clinical and anatomic patterns did not develop until after the contributions of the early modern neuroanatomists and physiologists in the first quarter of the nineteenth century. These contributions allowed the recognition of relatively distinct painful afflictions of the face, and permitted surgeons in the late nineteenth century to embark confidently on a variety of approaches to cranial and peripheral nerves using decompressive or destructive procedures to alleviate facial pain.