Graduate with the Lurgy

I’ve finally graduated from the programme only to find myself on day 4 in bed with the flu and a 5k looming (13th January).

What’s the best way to start back up and is it safe to start running again when you’re still coughing? No fever, no runny nose, just recovering from body aches, sore throat and dry coughing.

I don’t want to miss the run next month or lose all the fitness I’ve worked so hard to achieve.

Advice is welcome - Thanks !!!