An 80-year-old patient with acute myeloid leukemia developed a serious fungal skin infection caused by Rhizopus oryzae on his lower leg. Doctors treated the infection by repeatedly cleaning out the infected tissue and giving him an antifungal medication called posaconazole for just one week. Despite the short treatment duration due to cost concerns, the patient’s wound gradually healed over four months through continued surgical care, showing that sometimes focused surgical treatment can be as effective as long-term medication.