You can eat seafood after three days of vaccination, vaccines are biological agents, and children’s vaccination is also a kind of program inside the national immunization. Biological agents may have some reactions with chemical agents, so try not to give your child seafood after vaccination. Eating seafood allergic reaction is relatively large, after vaccination allergic reaction, it is not easy to distinguish whether it is a reaction to the vaccine or seafood reaction, so this period of time should be avoided to eat seafood food intake. In addition, the child’s spleen and stomach are weak in early childhood, and seafood itself is a cold food, so if you give your child seafood, it will easily lead to gastric discomfort, and will also affect the digestion and absorption of food. After the vaccination, combined with the age of the child, about three days after the child can eat some fish, but should avoid other seafood intake, so as not to cause the child to have other physical discomfort.