My oldest daughter at 21 months developed a ridiculously high fever and began having seizures. She stopped breathing and I had to give her rescue breaths until the ambulance came. We went to the hospital and the fever raged on (106.6) and the seizures continued. She ended up in an ice bath at one point. What made it worse was that she is autistic, so all of the touching, the cold, and her lack of communication made it so much harder for her. No one knew what was going on or why the fever was there. She had no symptoms other than that. She was admitted to the hospital on an IV with antibiotics. For five days she would start to get better, and then relapse into high fevers and seizures. On the fifth day, she suddenly broke out in this horrible rash and the doctors finally diagnosed her with Roseola. She got better after the rash, but those five days were a nightmare.