Brazil nuts are especially high in selenium, containing 544 micrograms, and other tree nuts such as almonds and cashews have high amounts of both selenium and magnesium. Whole grains such as wheat and oats are also high in both minerals, with up to 160 milligrams magnesium and 60 micrograms selenium per serving.
Medical Definition of wheal. : a suddenly formed elevation of the skin surface: asa: welt; especially : a flat burning or itching eminence on the skinb: the transient lump occurring at the site of injection of a solution before the solution is normally dispersed.
Hives are also known as urticaria, welts, wheals, or nettle rash. It is a red, raised, itchy skin rash that is sometimes triggered by something that produces an allergic reaction-an allergen. When there is an allergic reaction the body releases a protein called histamine. When histamine is released our capillaries (tiny blood vessels) leak fluid.