More fish oil, add coconut oil and add some humidification to your house. It's very dry this winter.
If you have pollen out right now, consider adding a teaspoon of local, unpasteurized honey per day to her diet.
If she itches year round, I would look at environment, dust mites, etc. And put her on a LID food such as fish and sweet potato to rule out food allergies.
Jax Von Monkeybutt, CGC
Queen Banshee Boo
Sierra the Undecided
Cracker, The Great Shedder
Rich N Handsome, "Red"