Cocaine, cut with a powerful veterinary medicine, is causing skin necrosis. (Of course, there is no real difference between veterinary medicines and people medicines, other than price and you can use things on animals that you can’t use on humans. But, really, buying drugs from a guy whose middle name is “the” is a bad idea.
So is Smoking potpourri.
It always amazes me what lengths people will go to to get high.