White vinegar is not recommended for gray nails, which need to be treated with antifungal drugs. Gray nails are often caused by fungal infections, the use of white vinegar soaking is not effective, may also cause secondary infections and other phenomena, so it is not recommended to use white vinegar soaking to treat gray nails, so as not to delay the condition. If gray nails appear, you need to timely antifungal treatment, often need to use oral antifungal drugs, such as terbinafine capsules, itraconazole, fluconazole and so on. Topical medications such as amorolfine can also be used for treatment. If gray nails occur, you should go to the hospital in time for examination, and you should pay attention to follow the doctor’s instructions when using the above drugs.