头部pblA 35-year-old woman complains of spasms of excruciating pain of the right cheek and chin.These pain episodes last for a few seconds and are intense.She had been diagnosed with multiple sclerosis 2 years previously.She is not taking medications currently,although she previously received intravenous corticosteroid therapy.Her physician says that her problem is related to the nerve that innervates the skin of the cheek area.the right cheek and chin右侧的脸颊和下巴last for a few seconds持续数秒intense紧张the
