You may not have much of an appetite during chemotherapy, but getting plenty of fluids is a must. You need to avoid dehydration, which can exacerbate any nausea you experience. Aim for 8 to 10 cups of caffeine-free fluids per day. Drink slowly and in small amounts at least one hour before or after a meal. And choose cool rather than warm drinks—they’re easier to stomach. If the scent of a beverage triggers nausea, drink from a cup with a lid and use a straw, recommends staff at MD Anderson Cancer Center in Houston. Try any of the following: