Nail fungus, medically known as onychomycosis, is a common yet bothersome condition that affects millions of people worldwide. While it might not be a life-threatening issue, nail fungus can cause discomfort, embarrassment, and even affect your self-esteem. In this comprehensive guide, we will delve into the causes, symptoms, prevention, and treatment options for nail fungus, helping you understand how to banish this pesky problem once and for all.