1 Sodium nitrate is a type of salt, naturally found in Chile and Peru. 2  It can also be created in a lab. 3  Sodium nitrite is also a type of salt, but is not found naturally and is created in a lab or as a byproduct of two other chemical reactions (i.e. when sodium nitrate is added to food and reacts with existing chemicals).
Eczema on Ear. Eczema on the ear can be particularly uncomfortable because of the extreme itchiness it can cause and the likelihood of an infection developing when the skin is damaged. The ear also becomes more prone to invasion by bacteria or fungus.
With seborrhoeic eczema, your scalp becomes irritated, red, and scaly. Thick scabs can become itchy and very uncomfortable. The inflammation of seborrhoeic eczema can cause it to spread to your face, neck, and behind the ears. In severe cases, it can also spread to the rest of your body. The cause isnât known.