Febrile Seizures are triggered by rapidly rising fevers in children and usually last no more than 5 minutes. They are almost always not as dangerous as they appear. Place the child in a safe place (e.g. on the carpet) and turn his head to the side to prevent choking if he vomits. Take the child to the emergency room, or, if the seizure has not stopped, call an ambulance. If the child is alert and you see he can swallow well, give him a dose of acetaminophen.