Before receiving each vaccine, there is often one of the most important aspects that can facilitate our vaccination by understanding clearly the precautions to be taken before, during, and after vaccination. Precautions before vaccination – Before making an appointment for vaccination, it is important to first learn about the new coronavirus vaccine, including the dose of the vaccine, the vaccination site, and the active ingredients of the vaccine. The purpose of knowing the active ingredients of the vaccine is to confirm whether you will have an allergic reaction to one or more of the ingredients to avoid accidents. – Try not to drink alcohol or smoke before vaccination, and do not eat spicy and stimulating food, but make sure to eat normally and do not have vaccination on an empty stomach to avoid hypoglycemia; try to wear clothes that are easy to put on and take off and have loose cuffs, and pay attention to good protection when going to the vaccination site. Precautions for vaccination – When you arrive at the vaccination site, show your ID card, passport or other documents that prove that you are eligible for vaccination. The vaccination staff at the site will make the usual health status inquiries, and you should tell the truth about your health status (e.g., whether you have fever, bacterial or viral infections, or chronic diseases) and contraindications to vaccination. – This information is an important factor in ensuring the maximum safety of vaccination and the effectiveness of vaccine protection, and individuals should not conceal their medical conditions or deceive about vaccination. Precautions after vaccination – After vaccination is completed, it is necessary to stay on site for 30 minutes because a very small number of people may have acute allergic reactions and fainting after vaccination, and most acute allergic reactions that seriously endanger life safety will occur within 30 minutes after vaccination, so once an acute allergic reaction occurs within 30 minutes of staying on site, rescue measures can be taken on site in a timely manner. – Pay attention to keeping the skin of the vaccination area clean and avoid scratching the vaccination site with your hands as much as possible to prevent infection; avoid excessive pressure and stimulation when bathing, and keep the area clean after bathing. – After vaccination, some adverse reactions may occur. If it is only a general adverse reaction, such as redness, swelling, hard nodules, pain, fever, malaise, headache, etc. at the vaccination site, there is no need to worry, as these reactions are transient and the symptoms will be relieved and disappear within a few days, and there is no need to seek medical attention or report to the vaccination unit. However, if the reaction is abnormal, such as acute or severe allergic reaction, you need to report to the vaccination unit and seek medical attention immediately. Vaccination is not only a means to protect oneself, but also a social responsibility. In the face of a rampant epidemic, no one is an “island” and no one can survive alone, so it is imperative to get vaccinated in order to establish an immune barrier as soon as possible.