Update

Well, Eleanor is not all better.  Her temp has gone higher and higher throughout the day and got up to 103.5!  When I saw that, I literally jumped up and frantically searched for the phone to call the doctor for the second time today  They had us come in (and her temp was up to 103.9!) and the pediatrician said the ER doc did a good job and covered everything, so she is sure it's just viral.  She gave us ideas for keeping the fever down (lukewarm bath, slightly higher doses of Tylenol/Motrin, Pedialyte in addition to nursing, etc.) so we'll be working on that.  Eleanor is now sleeping peacefully.  Poor baby...she is so tired and sick.  Her parents are ready for her to be well!

Update:  (Yes, I'm updating an update.)  When she woke up she was soaked with sweat - apparently her fever broke!  It gradually went down throughout the day and she was at 98.6 when she went down for the night.  Whew!