As the text-books on dermatology, so far as I am aware, do not mention the x-ray in treatment of erythema multiforme, this report may be of interest:
Mrs. O. was referred to me by another physician. She had been suffering for two weeks with a rather extreme case of erythema multiforme, involving the extensor surfaces of the fingers, the hands and the arms to the elbows. Many of the usual internal eliminants and local applications had been tried without any subsidence of the symptoms. I began the application of the x-ray on Jan. 23, 1909, and continued giving treatments, each ten minutes in length, on January 24, 25 and 28. By the last date the eruption had disappeared except for the brownish color. On February 10 there was a recurrence of all the former trouble at the same localities. I renewed the x-ray treatment on February 11,