Treatment of gray nails can be oral or topical medication or surgery, you need to choose the appropriate treatment plan under the guidance of your doctor. 1. Topical medication: you can use glacial acetic acid, amorphophallus powder and other drugs to treat, it is best to use a file to smooth the nails before treatment. 2. Oral medication: you can take antifungal medication such as terbinafine hydrochloride tablets and itraconazole capsules. Many antifungal drugs have certain effect on the liver, pay attention to check the liver function before and during the use of drugs. 3. Surgery: For more stubborn gray nails, the entire nail can be removed to allow the nail to grow back. This method is faster but the newly grown nails are easily deformed. The use of the above drugs need to follow the doctor’s instructions, we recommend that patients timely to the hospital, under the guidance of the doctor standardized treatment.