When you're feeling sick — whether nauseous, hungover, down for the count with a cold or migraine — there's no better miracle worker than water. Dehydration is the root of many common illnesses, such as certain kinds of headaches, and hydrating often relieves certain symptoms of illnesses, such as nausea or a sore throat. And water acts as a dieuretic, which can clear the body of toxins faster. So when in doubt, stick with the H2O. But there are plenty of other beverages that can relieve all of your illnesses. The next best bet when you're in need of wellness kick in the rear? Tea