I'm sorry I veered away from the original subject. That seems to be my nature recently.
Lane Labs has a product developed from this bog apple, alias devil's apple. It is weakened from the original; because the FDA raided them (literally) and made them remove it from their shelves and warehouses. This is because they claimed cure. No different a claim from black salve. Of course this product is not as scarring as black salve can be. I still have the original after over 10 years. I use it occasionally. It is still strong enough to be of value.