Welcome to HCM,
After going through your history fever is for almost 1 week and loose motions headache and body ache
, your father needs to be examined by good Physician so as to find out cause of fever.
There is a possibility all this could be due to some Viral fever
Metrogyl and antibiotic like Zifi are theses drugs prescribed by doctor if not then please do not take any such medicines without proper prescription as it is dangerous to take them.
As his widal test
is negative after 1 week of fever less likely to be Typhoid but other causes like Respiratory infection,Urinary tract infection
needs to be considered.
If required tests like Blood culture
, an X ray chest, Urine and stool R&M may be required for confirmation of cause of fever. Once cause is known then it can be treated accordingly.
Please visit a physician and hope you will improve soon with prescription treatment.
Please take care