can anyone help me with spider bite experience?

ok, i was bit sometime sunday night or monday morning, presumably from a brown recluse. I'm on massive doses of prednisone (which makes me ravenous ALL the time.) and antibiotics with benedryl and pain pills as needed. my questions is, does anyone know how long it will take to heal? i'm still feeling really fuzzy and funky, although i'm back at work today. when is it safe to ease back into exercising? should i wait until i'm done with the steroids/antibiotic regimine? any thoughts or experiences would be appreciated. this is a first time thing for me, and i don't like it!