First you definately need to get the fever down. Give them some paracetamol or nurofen. You need to ask your self how long they been like this and if you think the child is in need of medical attention get it as soon as possible. Hope they feeling better soon.
Take your child to the doctor!
over 104, go to hospital
do not give the child a blanket, they are shivering cause they think they are cold but arent, have you given tylenol? put a cold cloth on their forehead and try to bring fever down..fevers get serious over 104...leads to convulsions, seizures, etc.