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.
These may often be well treated by a lotion containing about 5 gr. of any soluble lithia salt in the ounce of rose-water, kept constantly applied on lint, covered with oiled silk. I have generally combined this application with the occasional local use of iodine and the internal giving of lithia, and have known the concretions and the stiffness to be removed. A pomade containing oleo-stearate of lithia has been recommended for friction in similar cases (Duquesnel). Lithia lotions are useful also if the skin be broken near gouty joints. Such sores do not readily heal, because the urate of soda permeates the connective tissue near them, and an alkaline salt neutralizes the acid and promotes healing.