It is recommended to wait for 3-7 days after recovering from a cold until the body has fully recovered before administering the vaccine. If you get the vaccine at this time, it may cause fever, headache and other adverse reactions, and may affect the effect of the vaccine in your body. In addition, fever is the first symptom of New Coronation infection, so if fever and other adverse reactions occur after the New Coronation vaccination due to the influence of cold factors, it will easily interfere with the diagnosis of the disease and delay the treatment of the disease. It is important to make sure that you are in good health before receiving the vaccine, that you have no recent history of fever or other acute illnesses, and that you are eligible for the vaccination. You should stay at the vaccination site for half an hour after the vaccination and leave only if there are no abnormalities. If you have fever, nausea, diarrhea or other adverse symptoms after returning home, you need to seek medical attention promptly. After vaccination, you should rest more and avoid physical exertion and strenuous exercise. Eat a light and nutritious diet, drink more water, eat more fruits and vegetables to replenish vitamins, and avoid drinking alcohol and spicy and stimulating foods.