I Feel My Husband Has Osteomyelitis He Is On Pic

I feel my husband has osteomyelitis he is on pic line antibiotics for blood and bone infection. Been in hospital for 20 days but now home. In so much knee pain. Still experiencing nausea. He is diabetic. We have too many doctors. How do I tell them to get their rear in gear and figure this out. He cannot walk on his own.