GRGR(17) potassium permanganate

[rj]

>  Don't remember
> what doctors and medics considered it a cure for.

I seem to remember it being readily available in your everyday first aid
kit as a general disinfectant for wounds -- little kids' scraped knees
and whatnot. Then there was a change to some stuff which stained bright
yellow.

Don't know that it would have done much for scrofula, crabs &c : )

best