Oh dear, poor lamb! '
You might be depleted in electrolytes after a bout of the flu...it just drains the life out of you! I would try some Gatorade or another electrolyte replacement drink. Or you could just add a pinch of salt to some orange juice and sip it all day. Green tea is always good too. Clear broth has a lot of good things in it for you. Plenty of veggies and fruits to get the enzymes back working again.
Try a nice honey mask. That should tighten things up a bit and add some moisture too. I like to do lymphatic drainage to rev things up and drain away all the toxins that accumulate. Here's a nice vid to show you how to do it on yourself:
lymphatic drainage - Google Video
Hugs! I hope you bounce back soon! Be gentle with yourself though...it takes a while to get back to equilibrium!