Thanks for the query.
Usually fever with pain behind the eyes could be due to many possible reasons but if you live in an area endemic to Dengue or Chikungunya fevers you need to be extra cautious.
Dengue fever can present with fevers which occur for a few days and then break and return later. Also it causes severe body pain
and pain behind the eyes.
Kindly get his blood work done. If his platelet count
goes low he may start bleeding from his orifices. Please keep watch for this.
He can have the medication as prescribed by his Doctor. His Tylenol
dose may need to be increased, kindly call up his Doctor and ask if this is necessary.
as it can increase chances of bleeding if there is viral fever
Give him plenty of fresh fruits and green leafy vegetables. Give him 2 glasses of fresh fruit juice like Orange juice as this helps to prevent bleeding and also helps in quick recovery in viral fevers.
Wishing speedy recovery.