I would consider not taking coconut oil and see if your symptoms improve. If you really think you have the “flu” I would get tested to see whether its bacterial, viral, or fungal. Most doctors prescribe antibiotics to fight the flu, which of course could be detrimental to your treatment. Antibiotics are also ineffective for fighting fungal or (either viral or bacterial, can’t remember) infections and is only effective against one type of pathogen.
There are a lot of basic things you can do to improve your immune system within a few days regardless of what you are ill with (or if its die-off). Sweat out the toxins within the body via a sauna, hot tub, jacuzzi, steam room, or even hot bath…this should bring immediate relief (effective for die off or other illnesses). Taking vitamin C and trace minerals such as zinc, magnesium, calcium can help. Taking antifungals of course could help fight illnesses (if its not die-off), but if it is die-off, it could make you feel worse.