After lung nodule surgery, you can improve your immunity through diet and medication. 1. Diet and routine (1) Diet: After surgery for pulmonary nodules, the patient’s immunity is relatively low. It is recommended that the patient should have a balanced diet and eat more fresh vegetables and fruits, as well as foods with high protein and vitamin content. Usually should quit smoking and drinking, alcohol and cigarettes are harmful to the body, if the postoperative smoking and drinking is not conducive to improve immunity. (2) Appropriate exercise: after lung nodule surgery, patients can do appropriate physical exercise, such as jogging, tai chi and so on, through exercise can accelerate the patient’s body metabolism and enhance their own immunity, but do not recommend that the patient carry out strenuous exercise, which is not conducive to the recovery of the body. 2. Medication (1) anti-inflammatory drugs: after the lung nodule surgery, patients may have some inflammatory reaction, you can take penicillin, cephalosporins, macrolides to prevent infection, which will help to promote the recovery of the patient’s condition, the immune system will also be enhanced. (2) Cough and phlegm medicines: after lung nodule surgery, patients may cough up phlegm and cough symptoms, which can be helped by medicines such as honey-refined loquat paste, snake gall and Sichuan shellfish liquid, etc., to help the condition to recover and strengthen their immunity. The above medications should be taken under the guidance of a doctor and should not be used on their own to avoid adverse effects. If there is any discomfort after the operation, you should inform your doctor in time.