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.
Itchy ears can drive a person crazy. It can be the first sign of an infection, but if the problem is chronic, it is more likely caused by a chronic dermatitis of the ear canal. Seborrheic dermatitis and eczema can both affect the ear canal. There is really no cure for this problem, but it can be made tolerable with the use of steroid drops and creams.