Please handle all jewelry items with care so you can enjoy wearing them for a long time, ideally your whole life.
Avoid exposing jewelry to shower, chlorinated and sea water as it may cause stains.
It is normal that silver oxidizes over time and freshwater pearls slightly change their color. They are both natural materials. When you wear your jewelry everyday, the contact to your skin will let jewelry oxidize less.
Take off your jewelry while doing sports, putting perfume or moisturizer on.
Clean jewelry with a soft polishing cloth rather than aggressive cleaners. If needed use lukewarm water and a mild soap.
A soft pouch or protective box is the best way to store jewelry.