If you are not allergic to fish and do not have symptoms such as nausea, vomiting, diarrhea or abdominal pain after receiving the New Crown vaccine, you can eat fresh, cooked fish on the same day, and try not to eat raw food. 1. After vaccination, you should eat a light diet with plenty of fresh fruits, vegetables and protein-rich, easy-to-digest foods. 2. There are no special requirements for diet after vaccination, balanced nutrition and regular meals are sufficient. Generally, it is not recommended to drink too much alcohol. Although drinking alcohol will not affect the effect of the vaccine and will not increase the incidence of adverse reactions, the discomfort caused by drinking alcohol can easily cover up the adverse reactions after vaccination and delay the treatment. If you experience loss of appetite or fatigue, rest and drink plenty of warm water. If the adverse reaction is more serious need to go to the hospital in time.