Basically u can tell from looking at the colour of the earrings. While most earrings are plated to give them a shiny finish. There are also some brands may leave just the posts untouched so as to reduce the risk of allergy.
Now if you are aware of what you are allergic to, it would be easy to avoid those material that causes you to itch. If not, i would advise you to avoid all kinds of metal plating except for pure gold and titanium. Because do take note that even silver and stainless steel contain traces of nickel which is the main cause of most allergies.
Colorful Feather Earrings are the fashion norm of today, most flout around with a colorful pair of these earrings. These have authentic feathers which make it that much more interesting and also special. They come in a whole host of colours that truly enhance the feel of having the product. It makes you feel that you really deserve every bit of it and that you are satisfied with it.