Precautions for vaccination include trying to ensure that the inoculation site is clean and dry before vaccination, wearing convenient clothes, and that the diet should be regulated before vaccination. In addition, you should stay for half an hour after vaccination, avoid contact with water, and eat a light diet after vaccination. The skin should be clean and dry before the vaccination, and it is important to wear clothes that are easy to put on and take off during the vaccination to make it easier to receive the vaccination. It is recommended to eat a light diet and avoid alcohol before the immunization. In addition, it is necessary to stay for half an hour after the vaccination to avoid allergies and other uncomfortable symptoms after the vaccination. After vaccination, you should avoid contact with water to prevent pain, redness, swelling and other adverse reactions at the vaccination site. In addition, after vaccination, you should eat a light diet, less spicy, stimulating food, such as chili peppers, peppers, onions and so on. You should pay attention to your life habits before and after vaccination to avoid adverse reactions after vaccination. If there are fever, severe pain at the inoculation site and other uncomfortable symptoms, you should go to the hospital in time.