Can humans get head lice from ferrets?

Head lice cannot live on animal blood, only human blood, and will die within 24 hours of leaving the human head, so it is unlikely. However, if even one does end up on your animal by happenstance, and you interact with your pet within a 24 hour period, it is possible to get the head lice back into your hair where it can lay eggs. For the sake of caution then, it may be wise not to allow your pets on your beddings or furniture such as your sofa until at least24 hours after your last hair treatment, and to change clothes after interacting with your pet.