Nausea 1. Eat before you feel hungry; 2. Eat room temperature food; 3. Take care throughout the day to keep fluids up to date; 4. If the smells of cooking make you uncomfortable, eat in another room; 5. Avoid greasy, overly sweet or spicy foods. Vomiting 1. Avoid exposure to foods or flavors that may make you feel sick; 2. Avoid activities that may cause motion sickness (e.g., travel); 3. If you are already feeling sick, stop eating until you no longer feel sick; 4. When you eat again, start drinking small amounts of water or other clear liquids; 5. If you no longer vomit, eat loose, easily digestible foods; 6. Gradually eat solid foods. 7. Mouth pain/ulcers 8. Prevent infection by rinsing your mouth with warm salt water 2 times a day: mix 500 ml of warm (not hot) water with 1 teaspoon of salt; or with 1/2 baking soda; rinse your mouth with this mixture 3 times a day until you all feel better; 9. Treat your mouth ulcers with over-the-counter mouth ulcer medication purchased from a pharmacy. Weakness (feeling fatigued) 1, according to the reality, rationalize your daily work and life; 2, daily activities should not be too concentrated, but can be spread out; 3, you should pay attention to rest in between activities; 4, you should pay attention to rest and daily exercise every day, so that you will be full of energy; 5, please think of your doctor to consult with him/her before starting a new exercise program; 6, do things that make you feel enjoyable and pleasant. Do things that make you feel enjoyable and pleasant.