Thanks for posting on HCM,
From your description you might be suffering from septicemia due to bacteria or viral or parasitic infection
of blood (it might have originated from a particular loci which doctor has to investigate). First, you need to be admitted and some blood tests done. Blood tests to include are blood culture
, CRP, ESR, thick blood film (if in zone of parasitic infections such as malaria), viral serology to rule out dengue fever etc, urinalysis
(to rule out possible UTI), Widal test (rule out typhoid) and also be examined for lymph nodes painful swelling. Doctor will surely need to place on antipyretic
medication such as paracetamol
(orally or IV) and on broad spectrum antibiotics while searching for the cause. It will also be better if some tests to exclude tumors and autoimmune diseases.
If treatment is not initiated immediately, her situation might get worst as the infection proceeds.
Hope this helps