We have a 9 month old GSD that has developed generalized itchy skin 3 weeks ago. Took her to the vet initially when we noticed she was scooting on her bottom and licking her front paw. She had no anal gland problem, she was just itchy. After washing with medicated shampoo and giving benadryl over 2 weeks those areas have calmed down, but still overall itching. Started the dog on Nordic Naturals Pet Cod Liver Oil almost 3 weeks ago hoping this will help to avoid the antihistamines. Has anyone tried this and has it helped? The vet said she is too young for a blood test to determine type of allergy and changing food to no grains Natural Balance Venison and sweet potato has no effect either.