I had a scary situation today when one of my DCK's suddenly spiked a fever of 41.5 (106!) He went from kind of crabby to really out of it very quickly. When I felt him he was burning up. Pretty scary. Mom and dad gave me permission to administer tylenol, picked him up immediately and brought him to the Dr. From what I read, seizures can happen at that temp. The Tylenol brought his fever down by the time he was at the Dr, although he still had one. Just told to have him rest and keep an eye on him. Glad he's OK.