Gray nail, or onychomycosis, is caused by fungal infection. Its treatment includes general treatment, drug treatment, surgical treatment and other methods. In order to be completely cured, it is necessary to follow the doctor’s instructions to adhere to a full course of medication in order to realize. 1. General treatment: patients with onychomycosis need to pay attention to keeping their feet clean and dry in daily life and change shoes and socks frequently. Because ringworm of the nail has a certain degree of contagious, avoid sharing shoes, socks, foot basin and other personal belongings with others, to prevent cross-infection. 2. Drug treatment: Usually it is recommended to use antifungal drugs under doctor’s instruction, such as terbinafine, itraconazole oral solution, amorphophallus nail application and so on, the specific use of which should follow the doctor’s instruction, and at the same time pay attention to the patients with liver injury can not take the above drugs. 3. Surgical treatment: for patients with ineffective drug treatment or severe symptoms, surgical treatment should be carried out to pull out the nails in time to avoid triggering other diseases, and cephalosporin, amoxicillin and other anti-infective drugs can be taken after the surgery. If you have nail fungus, it is recommended that you go to the hospital in time, and the medication should be used according to the doctor’s instructions.