Many people do not use the public toilets, swimming pools, and locker rooms in a hygienic manner. They simply use public wash rooms without gloves and slippers and forget to clean their toes and hands after use. Because of this bad habit, many of them have been affected by contagious nail fungus infection. As a treatment for nail fungus, consume a healthy and balanced diet so that you can improve your immune system effectively. Use a mouthwash with peroxide or white vinegar solution which may help to protect you from various bacteria and fungi. Without improving your immunity, you can’t completely get rid of nail infections.