Features of trigeminal neuralgia do not include
Paresthesia
Paroxysmal pain
Refractory period
Presence of trigger zone
Trigeminal neuralgia is an archetype of orofacial neuralgias that follows the anatomic distribution of fifth nerve that exhibits a trigger zone, stimulation of which initiates a paroxysm of pain. It is characterised by paroxysmal, excruciating pain in trigeminal dermatornes. Latency (refers to the short time period between stimulation of a trigger area and pain onset) and refractory period (occurs following an attack and during this time pain may not be initiated) are other 2 attack related phenomena related to TN.