A great treatment for fungal nail infections is to put a cotton wool ball soaked in apple cider vinegar on it for a while each day until it has gone, it works a treat,you dont need over the counter medications
Apple cider vinegar has anti-fungal properties. Soak your nail in a vinegar bath for 15 to 20 minutes every day and gradually increase the length of soaking. Within a month, you will see the infection fade.