The sour sop, also known as custard apple (Annona genus), is a small tree native to the Congo region of Africa. It also appears in Brazil, where it is known as malolo. It’s used in powerful unblocking baths when a person is absolutely desperate, miserable, oppressed by fate, and at the end of their tether. Make an infusion by pouring boiling water over sour sop leaves. Let it cool, strain and add this to your bath.