Onychomycosis, commonly known as nail fungus, is a nail damage caused by a fungal infection of the nail bed. Currently, the most effective treatment is oral antifungal medications. These medications are quite effective but can have an impact on liver function. They should only be used by individuals who are healthy and have normal liver function. If liver function is abnormal or if transaminase levels are high, these oral medications should not be used to treat onychomycosis. Topical medications can also be used, although they work more slowly and require long-term commitment to treatment. It is advisable to visit a dermatologist at a reputable hospital for diagnosis and medication recommendations. During treatment, it is important to maintain proper personal hygiene as this condition is contagious. Avoid sharing footwear, and refrain from visiting public baths and swimming pools. (Please use medication under the guidance of a professional physician and do not self-medicate.)