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.
Dry Skin. When your ears donât produce the right amount of ear wax, the skin in your ear canal is unprotected. This can lead to dry skin in your ear canal. Dry skin can be VERY itchy, especially if/when it starts to flake. A lack of ear wax may be the reason you have an itchy inner ear. Otitis media and otitis externa (swimmerâs ear) are two common ear infections that may be the cause of your itchy ears.