If your child has a fever and has vomited, it is best to give them acetaminophen (such as Tylenol) and Gravol. Your pharmacist can help you determine the appropriate doses based on your child's weight and preferences. Encourage your child to drink small sips of fluids frequently, and offer light foods like soups, broths, toast with butter, and eggs. If your child is unable to drink anything or if their condition worsens, it may be necessary to seek medical advice.