Tylenol extra strength for colds and flus in the day/night. Usually 2 tablets at a time should be enough for 4 hrs. If you have high blood pressure you'll have to be very careful. It's probably best to check with your doctore first. The best method for all colds and flus is to drink tons of water and sleep it off, but it may not be an option with your important work.
I hope you get well soon.