i had gone through your question and understand your concerns. fever in children often occurs due to viruses. in addition to fever is usually accompanied by symptoms such as cough, headache, sore throat and abdominal pain. for the symptoms like sore throat and headache could have a fever affect that causes blood vessels to dilate and blood supply decreased, causing the area to become more sensitive. they are common as long as there are no signs such as swelling, redness, white or yellow spots at throat and seizures.. the first aid can be done is to give more drinking, especially warm water to prevent dehydration. compress with warm water in the body especially forehead, armpits and group. if you give antipyretic drugs as you do can be every 6 hours. sometimes doctor will give vitamin, anti-body enhancer drugs to faster healing process. at home you can give your granddaughter like natural juice, honey and soup. i think you do not to worry and hopefully my answer help you. i hope your granddaughter get well soon..