My 9 year old daughter was diagnosed with pneumonia on sunday she was given cefdinir, is it normal that she has an low fever on and off?

Improving?: Antibiotics given for pneumonia can take a few days to weeks to completely cure. An oral temperature of greater than 100.4F is a fever, and if this continues for days, she will need to see a pediatrician to see if her antibiotics need to be switched. However, if her overall condition seems to be improving, I would take this as a positive sign that she is on the correct medication.