Supraorbital neuralgia.

Supraorbital neuralgia is a rare disorder clinically characterized by the following triad: 1) forehead pain in the territory supplied by the supraorbital nerve, without side shift; 2) tenderness on either the supraorbital notch or traject of the nerve; and 3) absolute, but transitory relief of symptoms upon supraorbital nerve blockade. The pain presents with a chronic or intermittent pattern. In addition, there may be signs and symptoms of sensory dysfunction (hypoesthesia, paresthesia and allodynia), and typical "neuralgic features" (lightning pain and exteroceptive precipitating mechanisms). However, sensitive and neuralgic features are not constantly present and seem to be more frequent in the secondary, usually post-traumatic, forms.