 There'll be no one else to go after but you, and fleas will bite people. Even the dog flea, and how ironic it is that rather the cat flea, which is the most common flea that bites our dogs and cats. It's called the cat flea. That's the common name. So I hope I helped you a little bit. Is there anything that you can feed your pet that, like through osmosis, when the flea bites into them, that they get it?