If you have gray nails, you should consider that the symptoms are caused by fungal infection, which can be cured, but the treatment is difficult, and generally require a relatively long treatment course, about 4-6 months, and need to carry out comprehensive treatment. Commonly used treatment is topical econazole nitrate cream or terbinafine hydrochloride cream, and oral voriconazole, you can also consider the use of local traditional Chinese medicine or antifungal drugs for sealing treatment. For a single toe onset of gray nail patients, you can also consider the treatment of nail extraction, usually pay attention to wear air permeable socks and shoes, in the diet can eat more food rich in vitamin C, to improve the body’s immunity.