I used this years ago and it worked. What I did was soak an old t-shirt or towel in Ted's peroxide and borax mange solution (My dog is 90 pounds) and then I applied it to his skin and sat with him for the amount of time. That way it was able to saturate on him and it got all the skin. I did not rinse it off. I applied it to all parts of the skin. The t-shirt soaked in it gave me better control of applying it to his face and around the ears too.