If you're unable to keep water down, make sure you don't dehydrate. Get an electrolyte mix/drink, sports drink, or failing that mix some salt in water (a very small amount of salt, usually with sugar, see below). Note: Salt in water is not as good as the specialised drinks, as it doesn't contain other important electrolytes, but it's better than nothing if you're having trouble keeping water down.
If you're at any risk of dehydration or delirium, especially if electrolyte solutions don't work, see a medical professional immediately.Originally Posted by World Health Organisation