The chemical composition of the nail, called compound povidone iodine application, is the same as iodophor, which is also an antiseptic solution, but if there are more gray nail lesions, such as ten nail lesions, or both hands and feet, this time to use can be treated with oral itraconazole or fluconazole capsules, the effect is a little better than the nail. There are also some drugs, such as amorolfine application, naftifine ketoconazole cream and the Chinese medicine compound tincture of tulip tree, which has a certain therapeutic effect on nail fungus, also known as gray nail. It is important to choose according to the specific condition so that you can do targeted treatment and not just consider using bright nail to treat it.