That's interesting because my dog is severely allergic to mites. She is also highly allergic to many other things. When she starts chewing licking excessively, I start mite treatment right away, even when I am not sure she has them. That has resolved her scratching and chewing Obsession MANY times. Her hair grows back and all the redness clears up. I hope you are able to get a handle on those fleas, so all of your babies will feel more comfortable. Remember, if one has them, they all do, so they all need to be treated. Good luck!