Windex does not treat gray nails. Gray nails are mainly due to fungal infection resulting in abnormal color and are somewhat infectious. Wind oil essence can inhibit the growth of bacteria and fungi, but it does not perfect the treatment of gray nails. Newly infected mild gray nails can be tried. You can soak the infected nail in warm water for 15-30 minutes to fully soften the nail, then take the nail out and dry it, after removing the poison nail clippers will slowly scrape off the surface of the nail until the soft pink nail bed is exposed, pay attention to the technique should be gentle and slow to avoid hanging on the nail bed to cause bleeding, take appropriate amount of wind oil essence drops on the nail bed to inhibit fungal growth, feasible 1-2 times a day. The effect of wind and oil essence is not significant for patients with long-standing grey nail infection lesions, so it is recommended to go to the dermatology department to standardize and adhere to the treatment.