This section is from the book "Materia Medica And Therapeutics Inorganic Substances", by Charles D. F. Phillips. Also available from Amazon: Materia medica and therapeutics.
In this malady the iodide deserves trial. In one case of the "inveterate" form, and of twenty years' duration, recovery followed the use of 10 to 30-gr. doses. There was no history of syphilis- only some suspicion of it from the copper color of the rash (Lancet, i., 1871).