The new coronavirus vaccine is a new type of coronavirus vaccine. Children who receive the new coronavirus vaccine may experience adverse symptoms such as discomfort at the injection site and allergic reactions. Most of the new coronavirus vaccines are inactivated vaccines made by inactivating the new coronavirus. After vaccination, children may experience localized pain and swelling at the vaccination site, sometimes weakness and fever, and in some cases, headache, nausea and vomiting, and in the case of allergy, allergic reactions such as rashes. After receiving the new coronavirus vaccine, children should pay attention to the hygiene of the injection site and should not bathe too early to avoid local infection and inflammation. Do not consume irritating food, so as not to cause irritation to the wound, redness and swelling.