Smoking a cigarette after the vaccination will not have any effect. However, after vaccination, some vaccinees may have adverse reactions, such as dizziness, headache, nausea, sore throat, etc. And smoking will stimulate the throat and bronchial tubes, which may aggravate the above discomfort symptoms. After vaccination, generally try to avoid undesirable behaviors that may affect the effect of vaccine or may increase the adverse reactions of vaccine. 1. smoking and drinking: smoking may increase the discomfort of respiratory tract and drinking may increase the adverse reactions of injection and gastrointestinal symptoms; 2. eager to take a bath: if the injection site is not healed and the bath is wet, bacterial infection may easily occur. Therefore, it is generally required to take a bath after 24 hours of vaccination; 3. Strenuous exercise: Strenuous exercise will lead to a decrease in immunity, and the organism is receiving foreign antigenic stimulation, and is itself in a period of immune turmoil, with the risk of producing harmful immune responses, which may be compounded by factors leading to a decrease in immunity. In addition to the above-mentioned malpractices, which should be avoided as much as possible, attention should be paid to diet. It is recommended to choose light, easily digestible foods and avoid spicy and stimulating foods or foods that can easily lead to the occurrence of allergic reactions. If local or general discomfort worsens or lasts for a long time without healing, it is recommended to seek medical attention.