head lice造句 31 Below are some simple home remedies for head lice that will make your head lice free. 32 Human head lice are related genetically to lice on chimpanzees, and the two species began to diverge as humans and chimps diverged. 33 The newly targeted chemicals include products that are widely used in pesticides and flame-retardants, and in a number of other commercial uses, such as a treatment for head lice.