i use to soak my yorkies paws in tea tree oil. you need to dilute it, one drop to 2 cups of warm water . or when you wash your dogs. put some water in the tub so they are standing in water also, to this water add one drop of tea tree. mix around with your hand. i keep hearing others say tea tree is bad for dogs, but i think people are using it straight on thier dogs and using not pure tea tree. maybe a cheaper version from drug stores with added items in it? but i used tea tree for 18 years on a weekly basis for my yorkies ears to clean and feet. with ears i added it to witch hazel. cats can't have tea tree at all. realize this thread is old, but paw issues pop up all the time.