For 3 days after the vaccination, babies should try not to eat greasy and spicy stimulating foods, and foods that are too cold should not be eaten, so it is not recommended to give children shrimps within 3 days in this case. Because all vaccines are biological products and are a kind of foreign stimulus to the human body, biological products will generally cause local and systemic reactions of different degrees after vaccination. Local reactions include local redness, swelling, heat and pain about 24 hours after vaccination, and systemic reactions such as fever. Fish and shrimp are spicy and irritating foods, which are hairy, so in this case, it is not recommended for children to eat them within 3 days, as it may aggravate the local reaction to the vaccine and cause more redness, swelling and pain at the vaccination site.