If you’ve been diagnosed with the flu, allow yourself a reasonable recovery period. The Centers for Disease Control and Prevention (CDC) recommend that you don’t go back to work until you’ve been fever-free for 24 hours without medication. Even if you don’t have a fever, you should still consider staying home until other symptoms improve. It’s safe to return to work or school when you can resume normal activity without getting tired. The recovery rate varies. Even after feeling better, you might experience a lingering cough and fatigue for a few weeks. Always see a doctor if the flu comes back or gets worse after an initial recovery.