On average, a toenail will replace itself every 9-12 months. Healthy new growth will be visible within the first 2 months and as your nails continue to grow following the laser treatment. We highly recommend that a topical anti-fungal agent be used in conjunction, to reduce the risk of cross contamination. It is also critical to disinfect your shoes with our in-office Klenz unit and to use Biotext spray regularly at home.