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.
In many individuals, eczema often goes hand in hand with other atopic conditions, such as asthma and hay fever. Symptoms may be acute (i.e. scaling and oozing of the skin) or chronic (i.e. thickened areas of skin or changes in pigmentation). Eczema tends to first appear during a child's first year of life.