Intake recommendations for iodine and other nutrients are provided in the Dietary Reference Intakes (DRIs) developed by the Food and Nutrition Board (FNB) at the Institute of Medicine of the National Academies (formerly National Academy of Sciences) [2].
Answer. The ear canal has very delicate skin; even a hair may cause itching in the ear. So no wonder itching or irritation is a common complaint from the hearing aid user who comes in for a follow up visit.
Itchy ear canal, Itchy inner ear or itchy ears inside confusion. For the context of this discuss, itchy inner ears, itchy inside ears and itch ear canal have been taken to mean the inner part of the outer ear or simply the ear canal. This therefore means that all except otitis media can be responsible for itchy ears.