To avoid future rusty drama, stop using rusty hangers, dryer racks that are chipping, or metal buttons that have seen better days. And if you live in an old building with pipe issues, run the tap for a few seconds before washing your face or soaking clothes. I learned this the hard way after a rusty showerhead baptized my favorite towel into a Jackson Pollock painting.
Also, check your pockets for loose change, old keys, or that pocket knife you forgot about. A wet pocket full of coins is basically a hospital for rust stains.