Nail fungal infections are caused by tiny microscopic organisms, called fungi. Fungi do not require sunlight to survive. Generally, a cluster of fungi, called dermatophytes, are responsible for the fungal infection of the toenail. On the other hand, some yeasts and molds are also the reason of these infections. If you want to know how to kill toenail fungus fast, you’re not alone. If you don’t use onychomycosis home remedies or over-the-counter treatments, it can spread to your other nails qu...