Try spraying your ring and finger with Windex. I don't know how it works but our jeweler uses it when someone tries on a ring and can't get it back off their finger. Works like a charm! My DH's wedding ring has "shrunk" with time and now he uses it when he absolutely has to take it off (like when he had surgery recently). It also works putting on a ring that's tight and it doesn't make a mess inside your ring like soap or lotion.