Seizure activity brought on by an excessively high fever in an infant or young child. If you see someone experience a seizure, call their doctor (or 911) and explain the situation. Ask for instructions. Initially, however, try to break their fall and move objects away from the area. Do NOT put your finger or anything else into their mouth unless you are trained to do so (as they may bite down or move with extreme force and end up damaging themselves or you).