Clinically, gray nails are a common fungal disease caused by a fungal infection of the nail plate and the underlying nail tissue. In clinical practice, white vinegar soaked garlic is not helpful in the treatment of gray nails. Although it is true that garlic has a certain role in killing bacteria or fungi in clinical practice, and the active ingredients of white vinegar are the same as those of glacial acetic acid solution. However, the concentration of garlic and white vinegar that can be used to remove fungus is very low. If this concentration is used for the treatment of gray nails, patients can find that their gray nails will not change in any way. If the nail infection continues to progress over time, it may lead to significant breakage, peeling or thickening of the nails. Therefore, patients should visit the dermatology department of a regular tertiary care hospital if they have grey nails.