Eat plenty of protein (your body needs it to make those white blood cells) and a few days off won't hurt you nearly as much as staying sick will.

Seriously, if you haven't started on black elderberry extract yet, get some. I've tried all kinds of things for colds, and if it was placebo effect, something else would've worked a long time ago. That stuff works. Like most things it's probably best if you take it as soon as symptoms start, but I don't think it's too late.

Anyway hope you feel better soon!