Central diabetes insipidus is a decrease in the production of ADH by the hypothalamus or in the release of ADH from the pituitary while nephrogenic diabetes insipidus is characterized by a decrease in the kidney's response to ADH.
In general, it is young children with severe eczema who may have a food allergy as a trigger factor. The most common foods which cause (trigger) eczema symptoms in some people include: cows' milk, eggs, soya, wheat, fish and nuts.
The rash can also be aggravated by heat, irritants that come in contact with the skin (like wool or the chemicals in some soaps, fragrances, lotions, and detergents), changes in temperature, and dry skin. Stress can also trigger a flare-up of eczema.