This morning we took her to the vet. She is diagnosed pneumonia and fluid and antibiotics. So far she doesn't show any improvement. Not drinking milk. I tried to feed her milk with injector. She just took very little.It sounds like it. She'll need to see the vet for Excenel, or draxxin,a prescription antibiotics. You can give her infants Benadryl till you can get to the vet. Pneumonia is something that has to be treated with prescription medications especially in a 4day old baby.
Watch her temperature closely!