When to Call the Doctor for a Cold or Flu
You should also call your doctor if, after feeling better for a short time, you start to feel worse and experience a high fever or chest pain, or notice a difference in the mucus you're producing, such as a change from clear to thick, yellow-green mucus.
With children, be alert for high fevers and abnormal behavior, such as:
- Acting unusually drowsy
- Refusing to eat
- Crying a lot
- Holding the ears or stomach