Fever

Hi,
My mom had her second radioembolization session on 14th April (Lt.lobe), even before embolization she wasn’t that good!!! she had bullous eruption on her back (?? drug eruption) followed by unexplained fever (which reached 38.7 celsius), on day of embolization due to right loin pain her radiologist asked for abdominal CT which accidentally revealed bilateral basal lung consolidation ( if some of you remember she was suffering from dry cough and she had CT chest 2 weeks prior to that CT) so chest infection was excluded from differential diagnosis!! anyway a pulmonologist diagnosed her as atypical pneumonia and she received antibiotic combination for 10 days with corticosteroids and fever disappeared, Now she has low grade fever 37.5 and reach 37.9 degrees at night, I’m really confused is it from radiation or resistant chest infection, she has no cough nor sputum and her radiologist told me that postembolization fever is usually constant and doesn’t fluctuate!!! I’m really depressed and i don’t know what to do?? Could any body here with experience in Y90 radioembolization help??
Thanks.