What smell do fleas hate?

Fleas hate peppermint!! If you have a dog and it has fleas, go to the pet store and ask for peppermint dog (or cat) shampoo!! It really works!

Hope that helped! :)

Fleas also hate the smell of vinegar. Mix up a spray bottle with vinegar and water and spray on your pets to help get rid of fleas. Its a nice safe natural way to treat fleas.