Fungal infections, also known as mycoses, are caused by fungi—microscopic organisms that can live in soil, water, air, and on plants and animals. While many fungi are harmless, some can cause infections in humans, especially when the immune system is weakened.AT LUSH SKIN & HAIR CLINIC WE TREAT FUNGAL INFECTION TREATMENT IN BEST WAY IN SHAHEEN BAGH, ABUL FAZAL, JAMIA NAGAR , SARITA VIHAR, OKHLA VIHAR & JASOLA.