Don't freak out
This happened to my daughter and to my son. The doctor said its a common virus that kids get. It causes a fever for a few days and then they get little red bumpyish rash. The doctor said that the rash is the virus leaving the body and there is no medicine for a virus it just has to run its course. There's no need to worry unless the baby's fever goes over 100.1 degrees. Then I would contact your doctor or maybe pay the hospital a visit. Its always better to be safe. Doesn't make you a crazy hypochondriac mom.