The Fidos Flea Shampoo for Dogs and Cats is the best smelling flea shampoo we've used. It's very effective for controlling fleas, ticks and lice on dogs and cats yet is a gentle, mild, soap-free formula which will not irritate even the most sensitive skin. Unlike other flea shampoos, it will not dry out the coat. The result is a soft, lustrous coat and no uninvited guests!