How long until the fever is gone?

I would call the doctor.Sometimes they will let you give a dose of Tylenol with the Motrin.Wiping down your child's body with a cool wash cloth can help too.A fever of 101.5 over a period of time is not good.101.5 is usually an indicating temperature of infection.I know it sounds weird but I know that cancer patients are advised that if they have a fever of 101.5 or above they should go to the E.R. in case it is infection.