[Susan]

I’d go vet & have a skin scrap to see that its not mites & see what type of skin problem it is, so it can be treated.. have you try washing Abby in Malaseb shampoo for skin problems, It could be seasonal from the new enviroment, the other 2 dogs may have just cleared up after you have bathed them or did something but Abby is a different breed of dog so she may need something more like creams to help clear her skin,