Pam
My sister has had fuo for 13 years, it comes and goes sometimes she has it for 6-12 months and then it miraculously goes away for a while, then mysteriously it comes back. She has had every test known to man and I believe some known to no one. None conclusive. I do hope you have better luck. She keeps her fever under control by taking tylenol or avdil before it goes up every day.