After the new crown vaccine, it is recommended to observe for 2-3 days. If no adverse reaction occurs after 2-3 days, you can smoke, and it is recommended to smoke a small amount first, and if there is no other adverse reaction, then you can continue smoking. If adverse reactions or allergic reactions occur within 2-3 days or after smoking, smoking is not allowed and you need to wait for the adverse reactions to disappear before you can smoke. Common adverse reactions include local redness, swelling, hard nodules, itching, pain, general malaise, fever, nausea, headache, dizziness, etc. If they are not serious or there is no local infection, no special treatment is usually required. Allergic reactions such as systemic allergic urticaria and angioneurotic edema may also occur, manifested by symptoms such as a large red windbag-like rash or epithelial edema on the body, which require treatment with antihistamines such as loratadine. Smoking is not recommended for people with these similar symptoms. In addition, people who are vaccinated and smoke heavily may have an impact on their immune system, which may affect the effectiveness of the vaccination and may aggravate the discomfort of the vaccine recipient. If a vaccine recipient has an uncomfortable reaction, he or she should stop smoking immediately and seek medical attention if symptoms do not subside. In addition, from the point of view of maintaining health, smoking itself is harmful to health and does not provide any health benefits. Therefore, the implant recipient and the general public are advised to refrain from smoking as much as possible.