On the other hand, allergy-related itch tends to come with classic symptoms like a runny nose, sneezing, itchy eyes and a seasonal pattern that flares during high-allergen times of year. Eczema-related itching, meanwhile, usually comes with a clear breakdown of the skin barrier, like flaking, scaling and redness.
Article source: https://www.huffingtonpost.co.uk/entry/itchy-ears-it-could-be-a-sign-youre-entering-this-dreaded-phase_uk_69aab035e4b03ae2f886006a