“Gray nails just look bad? Is it okay if I don’t treat it?” “Will taking oral antimicrobials hurt?” “Are manicures related to gray nails?” “Can gray nails be cured by pulling out the bad nails?” , questions like these often confuse gray nail patients. According to the survey found that most of the people for gray nails this common disease awareness of the existence of a variety of misunderstandings, in order to guide patients to correctly understand gray nails, gray nails to lift the trouble, now summed up the patient’s understanding of the five misunderstandings and clear answers: Myth one, gray nails just appearance is not good-looking, do not treat it. Gray nail is a contagious disease, not only will be infected to family, friends, but also cause foot odor. In addition, gray nails will also give people an unhygienic feeling, resulting in social embarrassment, such as gray nails on the hands and dare not shake hands with others, or can not engage in certain jobs that will expose the hands, especially like receptionists, waiters …… and so on. Myth 2: Oral antifungal medications are effective but harmful, while topical medications are not harmful but ineffective. Itraconazole, terbinafine and other antifungal drugs, with a wide antibacterial spectrum, small side effects, the advantages of a short medication time, so that the internal drug treatment of gray nails can be widely used in clinical practice, obtaining good efficacy. Especially itraconazole due to the ability to maintain effective antifungal concentration in the skin and nails for a long period of time, the use of intermittent impact medication, greatly reducing the time of medication, reducing the cost of treatment, reducing the side effects of drugs. Clinical application of millions of patients, only individual patients with transient transaminase elevation, has not yet appeared serious toxicity, side effects. It is very popular among clinicians and patients. In addition, general topical drugs can effectively treat gray nails as long as they can penetrate the dense cuticle of the nails and the drug effect can act on the nail bed. Myth three, manicure and gray nails have nothing to do. Manicures can cause gray nails. Excessive chemicals can cause the nail tissue to be constantly eroded by foreign substances, resulting in increasingly fragile nails, at which time the fungus will wait for the opportunity to move, causing gray nails. In addition, often painted and often used to remove the light water may make the nail deformation deterioration, nail bed inflammation, and finally become gray nails. Myth 4, foot fungus is contagious, gray nails are not contagious. Most of the fungal strains that cause gray nails and foot fungus are the same. If the whole family uses the items shared by the family, the fungus of gray manicure may be transmitted to the family members, resulting in foot odor or gray manicure. In addition, if the socks of the whole family are mixed and washed together, or wear shared slippers, shared bath towels, etc., all will be infected with each other. Myth 5: Pulling out bad nails can cure gray nails. Gray nails are mostly caused by fungal infections, pulling out nails can only remove the fungus above the nails, the fungus on the nail bed is not killed, and many fungal spores are in a dormant period, it is easy to wake up, and grow out of the still gray nails.