Previously healthy 37yo woman, left leg pain x2 days, on OCP and calcium supplement. Left distal extremity has subQ palpable, hard, cord-like structure within a 6 x 1 cm warm, erythematous area just proximal to ankle. Also has scattered varicose veins in both lower extremities. Best next step in mgmt?

A. application of warm compresses
B. use of compression stockings
C. oral dicloxacillin tx
D. oral prednisone tx
E. subQ enoxaparin tx