Hi Win, I'm sorry to say this is probably just a fairytale (to make a profit?). If soursop really was effective, Oncologists would prescribe it. On the other hand, anything is worth trying (it can't hurt, right?), just make sure you're not being charged a lot of money for it, and check the expected side effects. It's probably also wise to check if and how it will interact with the medication your husband has already had, or is having. I wish you and him all the best. love Emily. xx