It's better than dying from Melanoma, but often times the bloodroot does't get it all. Read the book Cancer Salves by Ingrid Naiman before using Black Salve for Melanoma. More likely than not you will have to do systemic cleansing anyways, so why not do that first and minimize the scarring?
I cannot say enough about the power of bloodroot to heal. It is the zinc chloride that is causing blood root salve to make such horrific scars. And the melanoma is coming back. Do the systemic cleansing first, and you may not need to apply it topically. But if you do, the scar will be minimized and you are more likely to "get it all" with one treatment.