You sure it's not more than cellulitis? Cellulitis typically manifests as irritation and swollen skin around the injection site, usually comorbidity with phlebitis and blown veins (hands/lower forearms and wrist area are known spots for this to happen). If they've got you on IV antibiotics, it must be relatively serious, you're lucky it didn't turn into sepsis or something worse (like a fucking amputation, or death). Thank you for listening and going to the hospital.
I would personally advise you as well as others have to STOP INJECTING WELLBUTRIN, STOP INJECTING INTO YOUR FEET and maybe consider BEING HONEST with your attending physician. It sounds to me, with no judgment being passed, like you may be at risk of harming yourself with this behavior as it is not the rational action of an individual who is mentally stable, that's for sure. Please, for the love of all that's good and holy in this world, do not come back here telling us that they had to throw a PICC (peripherally inserted catheter for drug delivery) line into your shoulder area/neck/other accessible spot on your body, and now you're using that to slam anti-depressants. Talk to your doctors and try getting their opinion on your situation and perhaps they can assess your scenario a bit better than us internet drug nerds - you may require psych meds that just could put a stop to what sounds like utter madness. You don't HAVE to live this way. Please stay healthy.