yep, thats it, and it does smell horrible but my ex wife is a nurse and she would put it on anything from boils to splinnters to ingrown hairs. Sometime old school remedies work. They didn't get to be old by taking the medicines we have today!
I think I know what your talking about, called drawing salve and it smells really bad and is black. I tried using it years ago but didn't get good results but I will try it again. Got it at Eckerd.
sounds funny to do this, but find an old person or find an old pharmacy and try black tar salve. Don't even know if you can still get it, but it will suck out the "poison" in a matter of days. Olld remedy, but always has great results. Hope this info helps!