First, you want to ensure the person, whether it's an adult or child, gets plenty of fluids and rest. That will help them stay as strong as possible while fighting this flu and will help them recover as quickly as possible.
In addition, you want to keep them as comfortable as possible, and that means helping them keep their fever under control.
With this year's H1N1 virus, fever temperatures in the 103F degree range are not uncommon and can make anyone feel pretty bad.
Giving them acetaminophen, often sold as Tylenol, or ibuprofen, often sold as Advil or Motrin, can help make them more comfortable and help try to keep their temperature down.
Don't give aspirin to children or teens with flu-like symptoms since that could cause other health problems.
In order to keep everyone else in the house healthy, you need to practice a couple of quarantine-type procedures.
First, try keeping the sick person in a room away from common areas. Designate only one or two adults to be the caregivers.
Both of these steps will help make sure the virus doesn't spread throughout the house and keep more people from getting sick.
While you're at it, clean all surfaces that get touched throughout the day, including door knobs, light switches and toys with disinfectant wipes or sprays.
Again the goal here is not to keep the person suffering from the H1N1 flu away from everyone, but to keep everyone else in the house as healthy as possible.