A 64-year-old man’s complaints had begun four years earlier with a burning pain at the glans of the penis, which lasted for several days, and was followed by a numb feeling that resolved after a few weeks. Some months later, there was an electric shock-like sensation at the side of his right lower leg, soon followed by numbness in that affected skin area. Over the ensuing years, there was a repeating pattern of a short-lasting sharp, burning pain, often during only one day, which evolved into a numb feeling that most of the time resolved completely in weeks to months. Several body parts had been affected in this way: the upper left leg, the fingers of his right hand, one by one, and the chest. Lately this had also occurred on his right cheek. The frequency of the attacks had not changed over the years.