Avoid large meals and infrequent meals. The smaller and more frequent your meals and snacks are, the more comfortable you will be. Eat foods and supplements that are high in calories and protein to maintain your nutrition when you cannot eat a lot. It is important to replace liquids if vomiting occurs. If you can, drink eight or more cups of liquid each day.
Fresh ginger is sometimes helpful in reducing nausea.
Diarrhea Diarrhea is an increase in either the number of stools, the amount of liquid in the stools or both. Medications, chemotherapy, radiation treatment, a reaction to certain foods, stress, and ordinary colds or flu can cause diarrhea. Prolonged diarrhea can cause dehydration, weakness, fatigue, and weight loss. When you have diarrhea, important nutrients such as calories, protein, vitamins, water, sodium, and potassium are lost. This loss can be serious if you are already ill or trying to recover from an illness.