Greetings and welcome to justanswer,
How long is he having fever, headache, stiff neck?
is he conscious and alert?
what are the drugs he is taking?
any history of injury?
did he consult a doctor yet?
Thank you for the information,
There are some common causes of such neck stiffness.The common ones are arthritis, injury, meninfitis, subarachnoid haemorrhage, tetanus, cerebral haemorrhage, viral illness etc.
The symptoms of fever ,chill, headache and neck stiffness is commonly associated with viral illness and may cause the neck stiffness in him.It should be ruled out first since he also had fever, chills, and headache.
As per the symptoms the cervical strain may also cause such neck stiffness though the chances are less.
The chances of viral meningitis may be there and should be ruled out by having the CSF examination done after lumbar puncture. The arthritis is also commonly associated with such neck stiffness and should be ruled out.
You should have the relevant investigations for him like ct scan neck and brain , blood counts, lumbar puncture etc. after consulting your doctor.
The treatment of viral meningitis is symptomatic and may require hospitalisation if the symptoms are severe.The other causes should also be ruled out.
Here is the link for more information
causes of neck stiffness
symptoms of meningitis
Let me know if you have any doubt.
Since he is alert and conscious so he may wait a few hours if his symptoms are not severe.He may take the drug like tylenol for the control of fever, if any and should drink sufficient fluid and water.
The sympytoms of meningitis if present is treated symptomatically and in mild cases even at home, the treatment may be done.
The symptoms may worsen within 24 hrs in some cases and thus need urgent medical attention.
He may wait a few hours if his symptoms are not severe.
You are welcome,