Thanks for your query on Lybrate
"As" per your clinical history is concerned please follow like this-
1) Do a clinical examination time to time and do check investigation reports like CBC
with differential and Para-check to confirm the exact cause of the fever.
2) Do take treatment as for underlying disease like antibiotics for an infection
and antimalarial if the parasitic infection is found.
3) Record her body temperature every 6 hours and this will help your Doctor to make a diagnosis and change medications if required.
Hope that helps Follow me with all reports.