A 45-year-old Caucasian woman complains of several weeks of spreading non-painful erythema of the left breast. A course of dicloxacillin had no appreciable effect on the process. rest examination reveals no palpable mass. Which of the following is the next and best choice of action at this time?
(A) Needle aspiration
(B) Prescribe a different antibiotic
© Biopsy
(D) Mammogram
(E) Ultrasound study