After vaccination, do not take too much seafood and cold, greasy, spicy food. If you eat fresh fish, it is usually not a big problem and you only need to observe the situation. If you eat not fresh fish, protein rejection reaction, you must go to the hospital, such as nausea, vomiting, abdominal distension, diarrhea and other conditions when feasible gastric lavage treatment, usually with warm water for gastric lavage, wash the gastrointestinal tract is not fully absorbed fish. Symptomatic anti-allergic drugs can also be applied to relieve the situation, applying injectable dexamethasone, methylprednisolone, methylprednisolone for intramuscular injection. If severe allergy leads to anaphylaxis, epinephrine can also be injected to alleviate the symptoms. If the patient has no uncomfortable clinical manifestations for the time being, observe the patient for 3-5 days and drink more warm water.