2, white vinegar: drop a few drops of white vinegar in the glue position, and then wipe, and gradually the glue will be wiped off, which is more suitable for the situation where there is not much glue, which can be said to be quite easy to use.
3. Knife: If the glue is sticky and cannot be removed by the above methods, you can try to scrape off the glue with a knife, but be careful when scraping. If you can't handle it well, you'd better go to the jewelry store and find someone to solve it.