Background: Mucormycosis is a fulminant fungal infection caused by members of the class Zygomycetes. These saprophytic fungi infect the immunocompromised hosts through inhalation of spores from soil. The most common presentation includes maxillary form of rhinocerebral mucormycosis with Rhizopus species isolated frequently. Case Report: Here, we document a case of a 57-year-old male with the complaints of maxillary swelling and pain. He had a history of diabetes with no medications taken for past few months. Based on the findings from the laboratory diagnosis, mucormycosis involving maxillary sinus was made. Conclusion: In the present case, high level of suspicion based on lab findings helped in proper management. Moreover, sooner recovery was possible due to the localized maxillary form of infection and good general health condition.