Okay i have been feeding duke on blue buffalo for probably 5 months now and he is starting to get little sores, or scabs right above his tail on his back. he is always itching. the vet said they cannot give allergy medicene cuz he is too young. so i have started wondering if it was the dog food, i wanted to get some other opinions because i have considered switching his food to orijen:nourish as nature intended. it is 70% premium fish, 30% fuits, vegies, and botanicals. and 0% grains and low carbohydrates. i need some other opinions please help!!