Hi, Thanks for writing in. Chemotherapy is the infusion of medication that works specifically against cancer cells. These are strong medications and destroy abnormal cells. When acting on abnormal cells, few normal cells are also affected. These can cause symptoms like sweating, tiredness or fatigue with or without nausea. Sweating can also be present. These are mild side effects. However if fever is persistent and high then any other secondary infection must be investigated for and treated if present. It is good to maintain a temperature chart every 6 hourly and also have adequate amounts of fluids and healthy diet.If your temperature is consistently more than 100 degree Fahrenheit for more than a day then you should talk to your doctor and get treated. Please do not worry.