Hi there ...
Thank you for the question ...
High grade fever with bodyaches in 70 year old female , could be possibly because of infection , and UTI ( Urinary tract infection ) is most likely .
She should get blood and Urine test for examination , so that appropriate treatment may be offered to her .
She should hydrate herself . Tab Acetaminophen 2 tablet every 6 hourly will reduce fever.
She may need antibiotics for which she need prescription from dr .
Good luck for her .
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