Invasive ductal carcinoma (IDC) is the most common subtype of breast tumor. There were many cases reported about the treatment and adjuvant therapies. The simultaneously occurrence of breast carcinoma with cutaneous myiasis is, to our knowledge, a unique presentation. A 50-year-old female known case of breast cancer presented to the surgical department at Ziauddin Hospital Karachi with complaints of pain, redness, blackening, and a foul smelling, discharging wound on her left breast. The wound was debrided thoroughly with povidone-iodine and about 52 maggots were removed, which were identified as Chrysomya bezziana. The patient was hospitalized and received amoxicillin and ivermectin according to protocol. This case report is pertinent to public health professionals and oncologists in the view of the social impact of myiasis.