I'm scheduled for femoral popliteal bypass surgery. I have developed a severe infection on my foot. Should I postpone surgery? This infection has been developing over the past few weeks. Have been put on (since 7/11/16) Clindamycin 300mg (one capsule by mouth twice daily). Then, on 08/10/2016, I was put on Cephalexin 500mg (one capsule by mouth three times daily). By 08/18/2016 Doxycycline Hyclate 100mg (one capsule by mouth twice daily).