I have 3 yr. old with a bad cough, stuffy nose, congestion, and fever. All she wants to do is sleep. I took her to her pediatrician, she her some medicine, and said she would basically just have to work it out of her. That was Tuesday, the medicine is not working, she is still the same way. I'm getting liquids into her but she won't eat, but a bite here and there. What can I do for her?