Scarify: verb. To drain blood by making cuts or scratches, a treatment designed to relieve ailments. Example: If you wrastled with a three-day headache, you best get you a razor and scarify that thang.
Other: When a baby has the bold hives, its fingernails turn black. What you did was turn the baby on its stomach and scarify it in the area back of the heart. Then you took a cow’s horn and put it in the cuts and sucked the blood out.. Then you put the blood in a spoon, add breast milk to it and fed it to the baby. (Dictionary of Smoky Mountain English).