Under what circumstances can I receive the flu vaccine? What are the precautions before and after vaccination? Let's hear what the experts have to say. Can children get vaccinated against influenza if they are allergic to eggs or milk? Doctors say that children who are allergic to eggs or milk can receive the flu vaccine. Since 2015, the Pharmacopoeia of the People's Republic of China no longer considers allergies to eggs and milk as contraindications for vaccination and can be vaccinated. Can my child get a flu vaccine if he has a cold? The doctor said that it is not recommended to vaccinate children against colds. Due to the low immunity of children during illness, the immune effect produced by the body is relatively poor, which affects the effectiveness of vaccines and is not recommended for vaccination. When can I get vaccinated? After the symptoms disappear, if taking medication, wait for 3 to 5 days after stopping before administering; If not taking medication, vaccination can be administered 2-3 days after physical recovery. Why did I still experience fever, cold, and cough after receiving the flu vaccine last year? Doctors say that influenza has a certain incubation period. If you have already been infected with influenza during the incubation period and get vaccinated again, it may take 2 to 4 weeks for antibodies to reach a certain level of protection. Infection during the window period may not be effectively protected. In addition, influenza virus vaccines can only prevent symptoms related to colds, fever, and cough caused by influenza virus, and symptoms related to parainfluenza virus and adenovirus infections may not necessarily be preventable. What are the adverse reactions that occur after receiving the flu vaccine that require early medical attention? The doctor explained that after receiving the vaccine, the community requires patients to stay under observation for 30 minutes. After 30 minutes, if there is no physical discomfort, it is recommended that the patient leave on their own. If the patient experiences severe symptoms such as fever, chills, chest tightness, and wheezing after returning home, it is recommended to seek medical attention nearby in a timely manner. (New Society)