Low body temperature in lung cancer may be due to the development of lung cancer to advanced stage, the metabolic rate decreases and body temperature does not rise, which is usually normal and can be improved by medication and life care. Take drugs with anti-tumor and improve immunity under doctor’s guidance, such as ginsenoside Rh2. If there is inflammation, you can use antibiotics such as amoxicillin, roxithromycin, azithromycin and other medications. In addition, usually we should pay attention to nutritional status, see whether there is wasting, drink more warm boiled water, supplement sufficient protein such as big bone soup, red date porridge, etc., eat more vitamin-rich fruits and vegetables such as apples, amaranth, etc., to replenish nutrients and energy, improve immunity of the organism and alleviate the weakness, meanwhile, pay attention to keep warm. Lung cancer with low body temperature should consult doctor in time for clear diagnosis and treatment, do not use medicine without authorization.