If you change it, my personal opinion is that it is better to change it to an allergic one first. When the skin of the ear hole heals, just bring pure silver jewelry, which can not only ensure that the ear hole is not injured, but also ensure that the ear hole heals quickly. If you wear sterling silver jewelry, if you are allergic to metal, your ear hole will feel uncomfortable, so your ear hole skin will heal slowly. O(∩_∩)O~ Where can I sell it in Tianjin? I'm not sure about this. But you can buy jewelry everywhere around you. Also, usually pay more attention to the maintenance of ear holes. You can use alcohol or hydrogen peroxide, or white wine to wipe the ear hole and its surrounding skin to play an anti-inflammatory and bactericidal role. The earring you just bought can also be dipped in the three kinds of wiping solutions mentioned above with a cotton swab, and the earring stick can be wiped. I think so. And the recovery will be quick. You should also pay attention to turning the ear nail often when you are newly pierced. Otherwise, after a long time, the skin will fix the nails and it is not easy to take out the jewelry.