The dog is 5 yrs old and has skin problems. Right now the owner is on her second round of antibiotics, she shaved the dog as well. He eats Purina One food. My guess is allergies as my previous Golden had allergies as well. My intention is to switch this dog to a raw diet but not sure if I should implement that right away for give him a week or so to adjust to his new surroundings/family before making any changes to his diet. What do you think?