What causes fever even after taking antibiotic therapy?
Patient: My son was diagnosed with right basal pneumonia 3 wks ago.  He was given zithromax for 3 days.  4 days after the end of medication, he again had fever.  After having blood test, it was found out that infection was high again.  He was prescribed with augmention for 7 days.  5 days after the medication is done. He is again having low fever.  Could it be that medication is not enough? Doctor: HiWelcome.I also think so.It must be either the medicine is inadequtely dosed or it may not be right antibiotic or there might be some othe focus of infection. Get a culture sensitivity of all the sites suspected to be infected, be done. Then treat accordingly. God bless. Have a nice day.