The mechanisms and effects of different medications on the vaccine vary, and there is no definitive conclusion as to how long you can take medication after the New Crown vaccination. Usually, medications can be taken on the day of vaccination, but it is recommended to take them at least half an hour after vaccination. If your body is in a disease flare-up before New Crown vaccination, or if chronic diseases such as hypertension or diabetes are not effectively controlled, New Crown vaccination is not recommended. New crown vaccination should be administered after the symptoms of the disease have been eliminated and the medication has been stopped, or after the condition of chronic diseases such as hypertension has been effectively controlled. If the condition of chronic diseases such as hypertension and hyperglycemia can be effectively controlled and the indications are stable, patients can take relevant medications on the day of New Crown vaccination as prescribed by the doctor, but try to avoid taking medications within 30 minutes after vaccination. If symptoms such as systemic fever, inflammation or diarrhea occur after vaccination, patients should lie down for adequate rest. Self-administration of medication is not recommended and may affect the effect of the vaccine in the body or cause the condition to be masked and delayed. If you have severe symptoms such as fever, vomiting and breathing problems, you should go to the hospital for treatment as soon as possible and take the medication as prescribed by the doctor after consulting him/her. After vaccination, attention should be paid to a light diet, no spicy and stimulating food, no alcohol consumption or strenuous exercise is recommended. It is not recommended to scratch the injection site to avoid wound infection and other undesirable symptoms, and you can drink warm water in moderation to help your body metabolize.