Revzen, have you tried to increase Omega 3 fish oil intake, I've read that itching in the ear canal can be from lack of ear wax or lack of Omega 3. Itching ears can be very frustrating, hope you can find some relief soon. Also, have you ruled out food allergies that may be causing the itching?
"We can judge the heart of a man by his treatment of animals." ~Immanual Kant~