Mucormycosis is a serious but rare fungal infection caused by a group of moulds called mucormycetes. Mucormycosis, or the deadly black fungus, is a life-threatening fungal infection belonging to the order Mucorales. It is an opportunistic infection, the hyphae of which commonly occur in soil, manure, fruits, and decaying matter along with the nasal passages and oral cavities of a normal person. COVID-19 has put the entire world in a turbulent situation that enhances immunosuppression. Former co-morbidities and their medications have made the patients susceptible to secondary fungal infections such as Mucormycosis. This fungal infection is a life-threatening condition. In this presentation, a case treated with corticosteroids post-COVID resulting in immunosuppression and increased chances for opportunistic infections will be discussed.