COVID-19 treatment makes an immune system vulnerable to other infections such as Black fungus (Muceromycosis). India has been facing high rates of COVID-19 since April 2021 with a B.1.617 variant of the SARS- COV2 virus is a great concern. Mucormycosis is a rare type of fungal infection that occurs through exposure to fungi called mucormycetes. These fungi commonly occur in the environment particularly on leaves, soil, compost and animal dung and can entre the body through breathing, inhaling and exposed wounds in the skin. The oxygen supply by contaminated pipes and use of industrial oxygen along with dirty cylinders in the COVID-19 patients for a longer period of time has created a perfect environment for mucormycosis (Black fungus) infection.