If it is gold, you can restore it by hand, with the help of scissors at most: other metals with higher hardness are more difficult, and remodeling may be broken: if you go to a jewelry store, the boss will usually give it to you. If you feel bad, you can give him 1 or 2 yuan, and plastic can also replace metal, and it is not easy to have skin allergies. Usually, you can prepare more plastic beads (that is, the part behind the ear of the earrings), and any style of earrings can be used. And cheap. It is also environmentally friendly. Isn't it?