If the nails are delaminated due to dehydration, you can relieve the symptoms by coming to apply nail polish. Layered nails can also be caused by gray nails. When you have gray nails, there will be thickening and delamination. If you want to judge correctly, you can use scissors to cut the nail diagonally and pick the surface nail to open a layer, without pain, it means it is a gray nail. At this point, it should be treated with antifungal therapy, and topical amorolfine ointment can be used. If it is caused by a lack of moisture, it is still better to treat, for example, you can usually add more fruits with moisture at home, you can eat more pears or apples, both of which are good for nail delamination. If it is caused by gray nails, you should immediately go to the hospital for treatment.