Hi, Sharie,

A friend of mine used Tetrasil successfully to get rid of a
skin tumor. But it took 3 to 4 applications each day for
about 3 weeks to get noticeable results. 
It might be a gentle alternative to zinc chloride-based
black salve. Also, it would be an interesting experiment
to compare Tetrasil to silver sulfate ointment, an old
remedy still in use in some parts of the world. It might
be possible to make silver sulfate by electrolysis with
dilute sulfuric acid.

Matthew