In reference to food, ânitrateâ really means sodium nitrate, but should really refer to sodium nitrite. While these are two completely different chemical compounds, they are often used interchangeably by those outside of the science realm. 1  Sodium nitrate is a type of salt, naturally found in Chile and Peru.
Symptoms. Diagnosis and Treatment. Prevention. 1  Patches of chronically itchy, dry, thickened skin, usually on the hands, neck, face, and legs (but it can occur anywhere). 2  In children, the inner creases of the knees and elbows are often involved.
Symptoms of eczema. The one thing all types of eczema have in common is the skin rash. These skin rashes differ according to the type of eczema but they all include some or all of the following symptoms: 1  Inflamed skin. 2  Itching. 3  Redness. 4  Scaly skin. 5  Flaky skin. 6  Skin which cracks. 7  Blisters.