Smoking is not recommended before, during or after any vaccine, because smoking itself can affect the human respiratory tract and lungs. Smoking before vaccination can cause harmful substances such as nicotine and tar to remain in the body, which itself may stimulate the body to cause cough and headache and other symptoms, and such substances cannot disappear in the short term and may react with the vaccine after the vaccination and aggravate the discomfort symptoms. Smoking is also not recommended during vaccination, as it affects not only your own health but also the health of the people around you and the vaccine recipients; after vaccination, the vaccine itself may cause some people to have adverse reactions such as low fever, dizziness, headache, weakness and cough, and smoking may aggravate the discomfort. Some vaccinees mistake the symptoms caused by smoking for adverse reactions to vaccination, which may lead to misdiagnosis. Therefore, smoking is not recommended in the short term after vaccination. In addition, tobacco itself contains harmful ingredients that may affect some of the components of the vaccine and may, to a certain extent, affect the activity of the vaccine and reduce its efficacy. Especially for people who have clearly experienced adverse reactions, smoking can cause irritation to the body and may cause symptoms such as coughing and coughing, which may affect recovery. In addition to not recommending smoking, vaccinators are also advised to avoid drinking alcohol and eating large amounts of cold, spicy, indigestible and irritating foods, such as chili peppers, hot pot, barbecue and cold drinks, etc. More light and easily digestible cooked foods and fruits can help alleviate the discomfort reactions. At the same time, attention should be paid to avoid heavy physical labor and highly stressful work, and proper rest and sufficient sleep can be guaranteed.