Hello
Welcome to health care magic.
I have gone through your query and understand your concern.
Fever with chills is usually due to an infection present in body.
You need to show to physician for detailed medical history and proper physical examination.
Certain blood investigations will be necessary like basic haemogram,peripheral smear for
Malaria,
Widal test for
typhoid and urine test for urinary infection.
Some specific tests may be needed depending upon your physical examination and area you are resident of.
Further management depends upon diagnosis.
May require antibiotic course of 7-10 days.
Can take
paracetamol with
nimesulide or any pain killer combination tablet 2-3 times a day for high grade fever.
Have plenty of fluids to maintain body hydration.
Have adequate rest.
Hope I answered your query.
Wish you good health.
Thanks and regards.