Not cashews used for food. It is a cashew extract from the Philippines combined with other herbs. There is a chain of dermatology clinics where they provide this cashew-extract treatment to remove skin growths with minimal or no scarring. It can be purchased on the internet.
Here is another cure you can ignore:
TagBand for skin tags (These are physical rubber-band-like devices.)
This info is not useful for everyone. People are free to get their health info exclusively from bureaucrats and from drug salesmen in white coats.
I have heard from someone who tried it that baking soda mixed with olive oil and applied to a precancerous skin lesion will get rid of it. Cancer cannot survive in the presence of baking soda.
Said he heard it from someone in Australia.