After the New Crown vaccination, if the recipient does not experience significant discomfort, tea can be consumed appropriately during the day and usually has no adverse effects on the body. There are no studies that show that drinking tea has an effect on the immune effect of the vaccine, and there are no post-vaccination precautions against drinking tea. Tea is not recommended if the vaccine recipient has uncomfortable symptoms such as nausea, headache, or fever, which may not be conducive to the relief and recovery from adverse reactions. Tea is richer in tea polyphenols, amino acids, vitamins and caffeine, which can promote the body’s metabolism and have a refreshing effect on the brain. Drinking tea at night is not recommended because it affects sleep and does not ensure adequate rest. If you sleep poorly at night, it may lead to a decrease in the body’s immunity, which indirectly affects the immunization effect of the vaccine. In addition, tea polyphenols and other substances in tea may affect the effect of the vaccine if too much is ingested, so drinking large amounts of tea or strong tea is not recommended. After the vaccination, it is recommended to eat a light diet, avoid drinking alcohol and eating spicy and irritating food. Avoid raw, cold, greasy, seafood, beef and mutton and other hairy foods. It is not recommended to drink tea and coffee at night to avoid affecting sleep, and to take more rest and avoid strenuous exercise. avoid bathing for 24 hours. Be careful not to scratch the inoculation site to prevent secondary infection.