Sun Simiao's "Theory of Great Doctors' Sincerity" means that "there is no difference between saving a disease and diagnosing it, being careful, being cautious and not losing it, and examining the needle and taking medicine" When helping a patient to see a doctor, it is necessary to know whether the patient has heart problems, that is, diseases that may be caused by emotions; Ask the patient about his diet and daily life carefully, even small and simple questions can't be skipped; When deciding the diagnosis and treatment plan, the acupoints and prescriptions should be carefully thought out, and there should be no mistakes.