Onychomycosis is a fungal infection of the nail that causes thickening, discoloration, and separation of the nail plate. It’s common, persistent, and often difficult to treat because the fungus lives within hard-to-penetrate nail tissue. Traditional topical treatments struggle to reach the infection, and oral antifungals can cause systemic side effects.

• Onychomycosis is a stubborn fungal nail infection with limited success from topical treatments.

• Laser therapy uses focused light to damage fungal cells and improve nail clarity.

• It is a promising option for patients who cannot take oral antifungals.

• Evidence supports cosmetic improvement, but full cure rates remain uncertain.

• Multiple sessions and realistic expectations are essential.