Looks like acute infection to me
The CBC reports also say the same
Fever might be a result of antibiotics not working against the pathogens
Get a culture sensitivity of the lymph node done so that the antibiotics can be started according to the report
I hope this is helpful
Next Steps
if you aren't able to procure the tissue culture sensitivity it's better to get admitted for intravenous antibiotics if she is having persistent fever
Health Tips
also should look for any other causes of fever