[header] How to feel better after you have been sick [title] Take your time. [step] One of the quickest ways to end up back in a sickbed is to push yourself to be active too soon. Yes, you probably have a lot to do and might be missing school or work, but letting your body recuperate from an illness is extremely important. 
Don't try to do too much until all of your symptoms have subsided. Relaxing and getting lots of sleep should be 1 on your priority list until you feel like you are 100% better.