I was serious. But also Spike is motherfucking amazing when it comes to knocking a cold on its ass. Feeling run down? Not sure if you'll makea workout happen? Drink yourself a fuckin' Spike! I always feel great after having a Spike while sick.
In your shoes I just increase my vitamin C doses, take some zinc losenges (clear your head out too) and pound back an extra couple liters of water.
If all else fails just snort an ammonia cap.