2. Seafood is a kind of hair. Within one week after vaccination, it is best to have a light diet, avoid greasy spicy stimulation, alcohol and tobacco, and exercise properly but not violently. Due to individual physical differences, the body will have different degrees of allergies or adverse reactions after vaccination. If you eat too much seafood, it is likely to aggravate the adverse reactions. Therefore, it is generally safer to eat seafood 7- 10 days after vaccination.