What you see is bruising, not necrosis. At least not yet.
What you all cannot see is the dayglow watermelon rash all over his body that is getting darker. When the hemolytic anemia sets in, he might need a transfusion of blood products. I know they are pretty much expecting his kidney function to be compromised within the next few days.
I stay calm and pray on.
His fever comes and goes at will, giving way only to it's own whims and not medications. One hour is chipper, hungry and feeling good. The next few hours he burns with fever and his heart rate soars. A CT scan shows only surface damage to the bite area; there is no abscess or boil even though the leg is swollen. Antibiotics, which were administered IV in the ER, have been discontinued. There is no indication of infection to justify antibiotic therapy and it could just make things worse.
Thank the Sweet Lord for morphine.
Thank you all for your prayers and well wishes. It is humbling to me and I can feel your concern and kindness in comments and emails.
Rabbit people rock!