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.
Mr. Bateman recommends a resin plaster made with two parts to one of tartar emetic, and applied over the naevus until inflammatory action and pustulation occur (Lancet, ii., 1869). I have several times pursued with success a similar plan.
 
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