Three of my grandchildren had RSV within the first several months of being born. Every one of them were hospitalized while they were sick. RSV can turn deadly within hours. It is not "just a cold". My best friends grandchild (at 5 weeks) went to the Doctor 3 days in a row telling them the baby was sick. The Doctor just treated it like a cold and after the mom nursed the baby the next morning the baby died while being burped.
With so many Doctors not treating children with medicines it is scary to me. I know kids are getting too much medicine and diseases are mutating into new illnesses but sometimes they really need drugs besides spraying their nasal cavities with saline and then using a syringe to suction it out.
Take that baby back to the Doctor and have her tested for RSV and see if it is gone, if not then stay at home another few days. Your child care provider may not be able to give the undivided attention you can give your child.
Here are some links:
http://kidshealth.org/parent/infections/bacterial_viral/r...
http://www.rsvinfo.com/sequelae/sequelae.html
http://www.childrenshospital.org/az/Site1521/mainpageS152...