Lamisil is used to treat fungal infections of the skin or nails. It contains the active ingredient terbinafine, which has antifungal properties that inhibit fungal growth and help eliminate fungi effectively. Lamisil is used to treat conditions such as athlete's foot, a common skin condition that usually appears between the toes. It is also used to treat ringworm infections in various areas of the body, as well as tinea cruris, which affects the groin area.
Lamisil is also prescribed to treat nail fungus, a condition that can lead to nail discoloration, thickening, or even complete destruction of the nail structure if not treated properly.