I have realized recently that when taking a medication such as exjade, it is common to associate every symptom we have with the drug.
A few weeks ago my son's neutrophil levels were 0.0 - immediately I associated this with exjade and was tempted to not give him exjade that day. I am glad that I did give him exjade because the very same day a second blood test revealed that his neutrophils had recovered to 1.1 and within a few days they were 2.6 - without ever stopping exjade.
His pediatrician explained to us that any child who has a viral illness can experience a "bottom out" of neurtrophils and quick recovery in the same way that my son did. Had I stopped exjade I would have assumed that it was stopping the exjade that caused him to recover. It is good to explore the possibility of exjade being involved, but the conclusion should only be made after thorough investigation of other possible causes.
I agree with Manal, the affect could be indirectly related to exjade in that extra hydration is required with exjade. With exjade patients may experience more frequent trips to the bathroom as well - perhaps increasing dehydation - therefore the increase in body temperature could be related to dehydration. Try increasing water intake to see if it relieves the fever. As Manal said, it is important to note how high the temperature is.
Iron can also harbor infection and cause fever.
Best of luck resolving this issue, I wish you success in your chelation,
Sharmin