Sawyer Permethrin (0.5%) can be applied to dogs. Permethrin insect-killing repellent for your clothing is effective against ticks, chiggers, mites and mosquitoes plus 55 other insects. It safely bonds with dog's hair and penetrates the skin to help control mosquitoes, fleas, ticks (including ticks that can carry Lyme disease, Powassan, and Rocky Mountain Spotted Fever), and lice for up to 35 days. To apply, start spraying at the tail, moving the dispenser rapidly to cover entire body (including the legs and underbody). While spraying, fluff hair so that the spray will penetrate to the skin. Make sure spray wets thoroughly, but do not saturate. Do not spray into eyes and face. Avoid contact with genitalia. Wear rubber gloves or mitts when applying. Do not use on puppies under twelve weeks. Permethrin is toxic to any aquatic life so if your dog is going to go swimming in a lake or pond you might want to consider another repellent.  In addition, you need to make sure your dog doesn't lick his fur when treated with permethrin - let fur dry completely. Consult a veterinarian before using this product on debilitated, medicated, aged, pregnant or nursing animals.

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Do not expose cats to wet permethrin as it affects their central nervous system and could cause death.  Cats can be around permethrin treated fabrics once the application has completely dried.