[Nonorganic pain -- only psychogenic?]

Many chronic pain conditions cannot be classified correctly into the actual categories of nociceptive, neuropathic, or psychogenic pain. The experience that a therapeutic influence on the vegetative nervous system often improves these pains or induces healing of them suggests a classification into four pain types. The inclusion of the autonomic component in the appreciation, and the treatment of chronic pain conditions using measures acting on the vegetative nervous system (such as local anesthetics in the neural therapy of Huneke) will consistently enlarge and improve the understanding and the outcome in pain therapy.