Hello. My father has had high fever for over 12 days now. He has taken all of his medicine as prescribed by the doctors, also some supplements as well as injections but that helps for a while and soon after comes back even worse. We tried to bring it down mechanically by cold towels and whatnot but not even that works. He also takes medicine for both diabetes and his heart. The doctors still don't know what caused the infection, if it is an infection. What are you thoughts? Please help.