It is believed that many people are troubled by lung disease, so how to take care of lung cancer? Many lung cancer patients neglect lung cancer nursing, in fact, good lung cancer nursing is an important environment for lung cancer patients to recover. Below we have introduced the top five common knowledge of lung cancer care, which we hope can help lung cancer patients. Combination chemotherapy occupies an important position in the comprehensive treatment of advanced non-small cell lung cancer, but it has serious toxic side effects, with bone marrow suppression, gastrointestinal reactions and hair loss being common. The observation and care of lung cancer are summarized as follows. 1. Psychological care The implementation of psychological care for lung cancer patients should firstly grasp four elements: premise, foundation, key and core. Good doctor-patient relationship is the premise of psychological care; the tacit cooperation between nurses and patient’s family is the foundation of psychological care; the correct mastering of patient’s psychological characteristics is the key of psychological care; helping patients to correctly understand the disease, actively cooperate with diagnosis and treatment, stimulating patients’ potential survival consciousness and improving the body’s resistance to disease is the core of psychological care. The nursing staff can make the patient cooperate with treatment in the best state of mind by doing the four elements. 2. Prevent infection Closely observe the peripheral blood picture of patients, and carefully check and record the cardiovascular, respiratory, digestive, urinary, motor and neurological systems after daily nursing check-ups and consultations. In addition to good disinfection of wards and bedding, clean and disinfect the oral mucosa, skin and perineum; instruct patients to pay attention to rest, not to go to other wards and reduce visits to avoid cross-infection. Advise patients not to pick their nose casually to prevent nasal bleeding; brush their teeth with a soft-bristled toothbrush to prevent gum bleeding. 3.Good health education guidance This is also very crucial in the care of lung cancer. For patients with mild to moderate diarrhea, observe, evaluate and record the number, color, nature and amount of stools and the stimulation of perianal skin, assist patients to take good care of perianal skin and inform them of the importance of cleaning the anus after stool; instruct patients to eat liquid and semi-liquid food that is easy to digest and contains less fiber, and avoid spicy, raw and cold, too hard and too greasy food. 4. Skin toxicity reaction Advise patients to avoid scratching and pay attention to keeping the skin clean and dry to avoid infection. 5.Muscle aches and pains often occur in 2 to 3 days of chemotherapy, and most of them return to normal in a week or so. In addition to giving painkillers as prescribed by the doctor, attention should be paid to explaining to the patient to let him/her know that this symptom is reversible. And assist in daily life care, massage the sore area, help to divert their attention to alleviate their discomfort, and physical therapy can be carried out if conditions permit.