Suggest Treatment For Fever And Cold
fever with rigors
Detailed Answer:
Thanks for contacting HCM with your health care concerns
You are worried about your father who is having episodes of fever and chills. This is a concerning symptom of possible infection or other serious condition. The types of conditions could be from bacterial infection or parasitic infections from travel to the tropics to liver disease or malignancy.
I recommend that your father be seen by his doctor so he can get proper evaluation and treatment. Trying to diagnose him over the internet is not proper. He needs to see a doctor who can see him, ask proper questions and order proper labs
I am sorry I can't give you much more information but at 90 years old he may have numerous disease all associated with fever and chills.