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.
The most common symptom of eczema is simply itching. Your skin reacts to the outside environment and interacts with certain stimuli, certain stimuli can cause irritation and lead to inflammation of the skin. This means that eczema is caused by allergens and so is an allergic reaction.