Well, she was given the cortisone shot yesterday afternoon and I bathed her with the benzoyl peroxide shampoo last night, yet she was still itching and chewing last night and today, though not as much. She does seem happier today and more energetic. I guess that would lead me to believe that it is a food allergy. I am going today to get the nb duck and potato. My husband loves to give our dogs treats, so I am thinking that perhaps I will get the nb lamb roll and cut it up in cubes so that his treat giving nature will be satisfied while he is at least giving them something healthy. I would like to get her to a point where I do not have to give her any oral meds and only control it with vitamins, food and the proper shampoo. Thank you again for all of your help. I will keep you posted as to our progress.