Bare-footing it through gym showers, pool perimeters and other moist places expose the toes to highly contagious fungi, as does wearing ill-fitting, closed shoes for long stretches of time. Inadequate hygiene at nail salons or leaving nail enhancements on for too long are likely culprits for causing fungus on the fingernails.
Nail fungus is hard to treat and should be considered a medical issue. The key is prevention. Ask your salon how it sterilises its equipment and how often. We recommend a double sterilisation process: customers are given individually sealed, sanitised equipment pouches before each service, and when the pouch is opened, the equipment is sterilised yet again for extra protection.