I get really sick when I have the flu. I got it while I was visiting my 95-yr-old dad in Florida in January, so I didn't get in much time for visiting. I got the chills so bad, I thought I was gonna die. I put some towels in the dryer and then covered myself with the heated towels - that made the chills subside. For me, it seems the most important thing is to get myself warm. I suffered a lot more before I learned to get myself warm.
I get a flu shot every year, but it didn't work out so well last season.
-Joe-