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.
The parasites in these maladies are curable by sulphur applications, but a compound ointment containing ammoniated mercury acts better than simple sulphur ointment (Ung. hydrarg. ammon., with an equal part of Ung. sulphuris, is a good formula).