There are many prescription and over the counter treatments for a fungal nail infection, but these are lengthy and often only give limited or no success. The Alma Harmony XL platform uses two types of laser – KTP and Nd Yag – to treat fungal nail infections. The lasers are passed in turn over the nail plate and into the nail bed, causing it to heat up. This heat breaks down the fungal spores, and is absorbed by the fungus causing it to die and infection to begin to clear. As the nail grows out, a healthy nail should show at the base and the infection gradually grows out.