Sorry to hear about the infection (especially after so many years since the surgery).
I was on Nafcillin IV for 6 weeks and then back on for another 4weeks. I'm still on Bactrim DS (oral) until June (then they'll decide if I can stop). As Linda said Acidophilus (probiotics) are good, you can pick it up in the vitamin section of Walmart or GNC. It should be refrigerated after opening. Initially the antibiotics can give you diarrhea but for me that got balanced by the pain killers clogging me system up. So it all worked out in the end. I think the probiotics continue to keep things regular even now after no pain meds.
Showering can be an annoyance but dealt with easy enough. I used plastic baggies (end cut off and slip arm through) and silk tape (paper tape can let water through) to cover where the PICC enters. This worked better then plastic wrap(what the visiting nurse suggested). Naficillin has a tendency to clog up the lines (I don't know if Penicillin does also) so I had to flush the lines 2x a day with Heperin. All in all you get into a routine and time goes quickly.
Good luck if you have any questions just drop me a line.
2 60* curves, DDD, left trunk shift, some rotation, rib and lumbar humps, annular tear at L5-S1
surgery 5/08 planning fusion T3 or T4 to sacrum with iliac fixation
Dr. Anderson at Rothman Institute
5/16/08 ALIF L1-L5
5/23/08 fused T2-sacrum w/fixation and I'm all Titanium
6/4/08 open all back up to clean out for Staph infection
(left open with just clear dressing)
6/6/08 recleaned and closed
3/30/2012 revision planned, broken rod and removal of iliac bolts