Thank you for your query.
Would you please clarify a few things for me?
1) How long has he had the fever? Does he have the chills (shivering)?
2) Any cough with phlegm? how long ?
3) any urinary symptoms ( burning sensation, pain , urgency and increased frequency?
4) does he have any other health issues (diabetes,
hypertension ,
heart disease, auto immune disease)?
5) is he on any medication?
His symptoms, collectively, point to a
respiratory tract infection. Four days of fever with worsening symtoms and obvious changes in normal body behaviour warrants a visit to his doctor. A quick exam and some bloodwork(if required) , a throat swab or
sputum culture will help the physician diagnose and treat it.
Most viral infections are self limiting and recovery begins in about a week from the time of onset of symptoms.
If he continues to have a
high fever (102F), develops
severe headache, lethargy,
drowsiness, cough that lasts for more than a week (along with fever), or any worrying symptoms, take him to the ER right away.
in the meantime, make sure he is well hydrated and takes lots of fluids and nutritious food. You need to protect yourself too. This could make you sick in a week or two. hydrate and eat well.
Hope this helps.
Feel free to get back to us if you have further questions.
Wish you both good health