Medicine: The Cool, Cool Evening

When Jean T., 35, mother of two children, went to the doctor's office in Philadelphia, she had only a few little pimples and wheals on her face, arms and legs, but she complained that she had been driven almost crazy every night for eight weeks by unbearable itching. She could identify the places where the itching started by small black spots. A host of specialists in internal medicine and skin diseases had subjected her to examinations, plus blood-sugar, blood-count, urine and liver tests—not to mention a syphilis test. Unable to find any cause, they dismissed the patient as a neurotic, gave...