After surgical chemotherapy for lung adenocarcinoma, according to the different conditions of each patient, medicines can be taken appropriately to enhance the immunity of the patient’s body, improve anemia, raise white blood cells and platelets, and supplement vitamins and so on. After chemotherapy for lung adenocarcinoma surgery, some patients will suffer from decreased immunity and poor body resistance, so they can take drugs such as thymopeptide to enhance immunity and improve the ability of patients to resist foreign invasion. For patients with anemia, leukopenia and low platelets, drugs such as polysaccharide iron capsule and blood-sourcing treasure combination can be given to reduce the above conditions. Patients with lung adenocarcinoma who have used pemetrexed systemic chemotherapy need to take drugs such as multivitamin tablets to supplement folic acid and other vitamins before and after treatment. It is suggested that patients should use drugs reasonably under the guidance of doctors, and should not use drugs blindly, so as not to cause serious adverse reactions and delay the condition.