Black salve/ointment

[Raggedyman]

So, had this dodgie looking thing on my face for a year or so, couldn’t see it but if I scratched it, always there, kinda annoying. Where I come from, skin cancer at my age is very common, very dangerous obviously but, meh, bit lazy, not a fan of doctors and not one to panic
Anyway, a suggestion on good old Facebook, in a discussion suggested -

i use this on my husband all the time. he's from Louisiana so I call it his Voo Doo salve. lol. By any chance is it ichthammol ointment?

It seems so, as I said, havnt come across it here in Australia before
https://www.fda.gov/consumers/consumer-u...many-names

Voodoo it seems