Nail fungus, medically known as onychomycosis, is a common but stubborn condition that affects millions of people worldwide 7 day nail fungus treatment It typically begins as a white or yellow spot under the tip of the fingernail or toenail and, if left untreated, can spread deeper into the nail, causing discoloration, thickening, and even crumbling of the edges. https://zanaquick.com/collections/frontpage