I have a bad fever.

Are you taking Tylenol to reduce the fever? If not take it every 4 hours and it will help keep it down.

I'm no doctor but 104 is very high for an adult. If I am not mistaken extended periods of 104 fever can have serious long term effects and be deadly if slightly higher. If you are taking tylenol and have a 104 again I would go to the emergency room or do whatever it takes to get your temp down below 103, this includes ice baths.