Amorolfine is primarily used as an antifungal agent, particularly in the treatment of fungal infections of the nails, such as onychomycosis. It is applied topically in the form of a nail lacquer, which allows it to penetrate the nail plate and reach the site of infection effectively. The chemical works by inhibiting the synthesis of ergosterol, a crucial component of fungal cell membranes, thereby disrupting their growth and leading to the death of the fungus. This makes it a reliable option for managing persistent nail infections, especially when oral antifungal treatments are not suitable or effective. Additionally, amorolfine is sometimes used to treat fungal skin infections like athlete's foot and ringworm, where it is applied as a cream or solution to the affected areas. Its broad-spectrum activity against various fungi, combined with its ease of use, has made it a popular choice in dermatological treatments.