Facial neuropathy. The origins of facial neuropathy is often difficult to diagnose, although the condition has been linked to Lyme disease and HIV or the presence of a tumor. This disorder affects the nervous system as the seventh cranial nerve has incurred injury and can affect facial movements.
TMJ (Temporomandibular joint and muscle disorders) is a group of disorders in which pain and discomfort occur in the jaw joint and muscles that control jaw movement. Usually the discomfort incurred by this condition is temporary. The pain associated with TMJ is usually described as radiating and pulsating.
Trigeminal neuralgia occurs when a facial nerve becomes inflamed. The pain often manifests itself as severe and comes in paroxysms, often happening spontaneously.