After hepatitis A vaccination, some patients may have fever, which is mainly a side effect caused by the vaccination, and is an effect of the body’s autoimmune protection mechanism. If the fever is low, such as below 38 degrees, you can use cool water towel or alcohol wipe, physical cooling can be. If it is more than 38 degrees, we should consider the use of some drugs to actively lower the temperature, you can anus nano anus anti-inflammatory pain suppositories, or take antipyretic drugs, but generally antibiotics are not recommended to use. In addition, it is necessary to pay attention to whether the patient has a combination of fever caused by colds, and whether the fever is caused by the high temperature of the environment, but note that the patient should pay attention to warmth during this period, to avoid further triggering viral colds and other situations. After the injection of hepatitis A vaccine, some patients may have ulceration and inflammation of the skin at the injection site, which can be treated with disinfection because the human body’s immunity is different, so the reaction to the vaccine is also different.