Onychomycosis is a prevalent fungal infection of the nails, which causes thickening, discoloration, and detachment of the nail bed. The condition is mainly caused by various fungal species, including dermatophytes, yeasts and molds. Treatment of onychomycosis is complex, with antifungal drugs playing a key role. This research aimed to evaluate the effectiveness of various antifungal treatments, both topical and systemic, in managing onychomycosis. This research used a descriptive qualitative approach, using secondary data through documentation analysis. Data were triangulated to increase reliability and validity. The findings showed that the effectiveness of antifungal treatment varied depending on the type of drug, duration of treatment, and patient compliance. Systemic antifungals, such as terbinafine and itraconazole, showed higher cure rates compared to topical treatments such as ciclopirox and amorolfine. However, all treatments had high relapse rates, underscoring the need for continuous monitoring and customized therapy. The implications of this research demonstrate the importance of personalized treatment plans and the development of strategies to prevent relapse, which remains a significant challenge in the management of onychomycosis.