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.
Tension headache Tension headaches, caused by muscle tension, are marked by pain, pressure and tightness around the head. Ear canal infection Symptoms of an ear canal infection include ear pain and itching, decreased hearing, drainage and more. Torticollis Torticollis are spasms of the neck muscles causing neck pain and stiffness, tilted head, and more.