LOL You stay off work until you're better.
I used to feel guilty every time I rang in sick, even when knocking on deaths door.
Strange isn't it? Why are we made to feel like that?
In the end, after I left work with depression and became a house husband, I'm quite opinionated about work now
I think we as a nation are slaves to work. We give our lives to jobs for them to say "here's a p45 and a crappy watch...see ya!" Only to be forgotten about a week later.
No one, on their death bed ever said "I wish I spent more time at work".
That said, we spend on average a third of our lives sleeping, and a third of it working, why should we spend that much of our lives doing something we hate? Do something you love! And only do it for a return (ie money), favours rarely get rewarded these days, especially if you're part of a big corporation.
If you're sick, don't feel guilty, its YOUR body, don't ruin it just by going into work because they want you to.