Cancer patients may have fever, for example, many cancers may be accompanied by inflammatory infections, and inflammatory factors can lead to fever. Body temperature above 38.5℃ is considered as high fever, and symptomatic treatment such as anti-inflammatory can be applied in this case. If the body temperature is higher than 38.5℃, antipyretic drugs, such as ibuprofen, can be used to relieve the patient’s symptoms. In addition, cancer patients who do not have infectious factors can also cause fever, most of which is tumor fever. It is the fever caused by the absorption of tumor necrotic material, which is low fever, that is, below 38.5℃. The effect of treatment is not very good, so you can apply Chinese medicine for clearing heat and detoxifying, such as oral Xinhuang tablet. Further anti-tumor treatment can be done for the primary lesion of cancer, which can also control this fever if it is effective.