Lung cancer patients can drink Yunnan Baiyao, which does not have the function of treating lung cancer, but when hemoptysis occurs in lung cancer patients, they can take Yunnan Baiyao to stop hemoptysis. Lung cancer often has symptoms of chronic cough, occasionally accompanied by coughing up phlegm and hemoptysis. Yunnan Baiyao has the effect of resolving blood stasis and stopping hemoptysis, which can achieve the effect of treating hemoptysis to a certain extent. However, when lung cancer patients have a large amount of bleeding, they need to be treated with hemostatic drugs such as hemagglutinin and pituitary posterior leptin under doctor’s guidance, and simply taking Yunnan Baiyao is not enough to treat their symptoms. Therefore, lung cancer patients can follow the doctor’s instruction to drink Yunnan Baiyao to achieve certain effect of stopping bleeding. However, when the symptoms of bleeding are more serious, it is necessary to combine with other hemostatic drugs under doctor’s guidance.