Black salve is a drawing salve. Apply to bee stings, mosquito bites, splinters, or slivers. It will draw out what you don't want to keep in your skin.

I've used it on my son's black heads.  They were brought to the surface to be able to scratch off vs digging them out.

Just a heads up: The salve will stain clothes.  Make sure you apply a bandage over the application