3.3.2.2 Chronic SUNA

A 26-year-old receptionist reports head pain confined to one side, present for a year with no pain-free interval longer than about eight weeks. The pain is felt around and in the eye, of moderate strength, and each attack presents as a single isolated jab rather than several in a row. The eyelid on that side droops during an attack, but she denies any redness or tearing of the eye. Episodes last close to two minutes and occur about twice daily; over the year she estimates around seven hundred in total, more than she has ever managed to keep track of.