I do not use the forum much, but I need help. I have a 7 month old son (Asher) with CF. He has been running fevers 102-104.2 and no other symptoms. We have been giving tylenol and motrin, it knocks it down for a little while and then it goes back up. Our family doctor (who I have complete faith in) has done a thorough check and can not find anything. He said if Asher was still running a fever in the morning he was going to call our CF doctor for some insight ( he is not afraid of a 2nd opinion). Does anyone else get unexplainable fevers like this. This is his first one, just not sure if it is common for people with CF to get fevers like this. Any information would be greatly appreciated. Thank you.