There are some hard and fast rules that all parents should stick to when it comes to illness and keeping children home. If your child has any of the following symptoms, it's time to let the school know she won't be at her desk:

• Fever (many schools require children to be fever-free for 24 hours without medication before going back to school)

• Nausea and vomiting

• Diarrhea

• A rough night (for example, if your child was up all night coughing or having trouble breathing)

• Listlessness, lethargy

• No appetite

• Pink eye

• Your child doesn’t seem "themself"

READ MORE on the Children's Hospital of Philadelphia website.