First it's that rough feeling, like you swallowed a bit of sandpaper. You know what's next: a sore throat. Is it the start of a cold, strep -- or something else?
"For most sore throats, you probably don't need to see a doctor. You can treat it with over-the-counter remedies, take time off from work, and rest," says Jeffrey A. Linder, MD, MPH. He's an associate professor of medicine at Harvard Medical School.
You can take all the precautions in the world, but sometimes the flu sneaks around your defenses. So what do you do when someone in your house has the flu -- or even swine flu?
To give you an idea, here's a countdown of five average days with the flu. Keep in mind that this rundown is based on a typical case of seasonalflu. There's still a lot we don't know about swine flu. But so far, its symptoms seem to be pretty similar to those of common seasonal flu viruses.