Rest and drink water if you're ill

Most people with food poisoning recover at home and don’t need any specific treatment. Until you feel better, rest and drink fluids to prevent dehydration. Try to drink plenty of water, even if you can only sip it.

Source: Food poisoning @ NHS Choices

Image: Water Impact 0 by (Henningklevjer) - (Henningklevjer). Licensed under CC BY-SA 2.5 via Wikimedia Commons.