Alcohol consumption is recommended one week after the three booster shots of the New Crown vaccine to prevent alcohol from adding to the adverse effects of the New Crown vaccine and reducing its effectiveness. There is no clear rule against drinking alcohol after vaccination, but alcohol, as an irritant, carries the risk of reducing the effectiveness of the vaccine. People who are allergic to alcohol and who drink alcohol after vaccination may experience allergic reactions such as skin erythema and itching. It is difficult to determine whether it is caused by alcohol allergy or an adverse reaction to the vaccine, which will affect the doctor’s judgment and further affect the treatment. Therefore, it is recommended to drink alcohol one week after vaccination. Due to the small needle holes at the injection site, drinking alcohol too early may lead to redness, swelling and pain at the needle site. Care should also be taken to keep the needle site clean and dry and avoid bathing for 24 hours to avoid secondary infection. If you feel seriously unwell after receiving the new crown vaccine, you should consult a doctor to find out the cause of the illness and treat it actively under the doctor’s guidance.