After receiving the new crown vaccine, in addition to the need to keep the injection site dry on the day of vaccination, pay attention to personal hygiene to avoid causing skin infection, and pay attention to avoid strenuous exercise and exertion, and should ensure proper rest to reduce the adverse reactions after vaccination. Whether you can smoke, take a bath or have intercourse after vaccination is also an issue of concern to most people in daily life. In fact, normal activities and diet will not affect the effect of the vaccine, and there is no need to change the original lifestyle habits. However, when symptoms such as fever, weakness, or even nausea and diarrhea occur after vaccination, you should adjust your diet, pay attention to rest, and avoid overexertion, not to mention alcohol abuse or overeating, which is more conducive to recovery from adverse reactions after vaccination. Therefore, it is recommended to abstain from smoking and alcohol for one week after vaccination, not to eat spicy and stimulating food or seafood, and to avoid contact with previously known allergens, maintain a light diet and drink more water to avoid affecting the immunization effect of the vaccine. As for the issue of intercourse after vaccination, there is no authoritative information showing its correlation with vaccination, but women during pregnancy are contraindicated for the new crown vaccination, so during intercourse, it is recommended to take good contraceptive measures. In addition, it is okay to shower a few days after vaccination. Vaccination personnel often instruct the vaccinees not to take a shower on the same day after vaccination. The main purpose of this is to prevent infection at the vaccination site and to avoid or reduce the occurrence of local reactions. The New Crown vaccine contains adsorption agents, and some vaccinees may experience redness, swelling or hard nodules at the vaccination site after vaccination. It is important to avoid excessive pressure and irritation when bathing, and to keep the area clean after bathing.