Curanail 5% Nail Lacquer is a once weekly treatment for mild fungal nail infections – for up to two nails – that is now available from the pharmacy. Curanail contains amorolfine, an effective antifungal agent previously only available on prescription. It can be used to treat up to two nails. Curanail contains the active ingredient amorolfine, an effective antifungal agent previously only available on prescription. Curanail kills a wide range of different fungi that can cause nail infections. This means that, for the majority of sufferers, Curanail can actually cure the infection. In addition, Curanail comes in the form of a nail lacquer (like a nail varnish), which only needs to be applied once a week. This combination of effectiveness and convenience makes Curanail a first choice over-the-counter treatment for mild fungal nail infection.