Since sterling silver, which is what we usually call 925 silver, is composed of 92.5% silver and 7.5% copper. Therefore, we should avoid contact with substances that may cause chemical reactions during wearing.
1. You can wear it every day because the oil on the skin keeps the jewelry shiny.
2. Take it off when you take a bath, wash your hair, swim, etc., which will expose chemicals to large areas of jewelry.
3. When not wearing, rub it gently with a soft piece of cloth, and store it in an airtight plastic bag to keep out moisture.
The above recommendations apply to all jewelry care.