Hepatitis B vaccine side effects, please pay attention

Hepatitis B is highly contagious. The easiest way to prevent hepatitis B is to get vaccinated. You will not get hepatitis B in your lifetime. By getting vaccinated, the body produces antibodies to avoid hepatitis B. Although the effect is very good, people can't help but worry about whether there will be side effects. Let's learn about it together below.

Hepatitis B vaccine is a special medicine used to prevent hepatitis B. After vaccination, the immune system can be stimulated to produce protective antibodies. These antibodies exist in human body fluids. Once the hepatitis B virus appears, the antibodies will immediately take effect to eliminate it, prevent infection, and will not harm the liver. This will enable the human body to have immunity to prevent hepatitis B, thereby achieving the purpose of preventing hepatitis B infection. Vaccination against hepatitis B is the most effective way to prevent hepatitis B virus infection.

Local discomfort

There may be mild inflammatory reactions such as redness, swelling, heat, and pain at the injection site, or local adverse reactions such as local lymph node enlargement or lymphangitis, but they are all temporary and will disappear on their own within 48-72 hours. No special treatment is needed, just hot compress.

Overall discomfort

Symptoms include headache, dizziness, fever, fatigue, drowsiness, and general discomfort. Some people also experience gastrointestinal discomfort symptoms such as nausea, vomiting, abdominal pain, and diarrhea. However, these are usually only temporary and disappear within 24 hours.

Precautions

The antibodies produced by the injection of hepatitis B vaccine do not exist permanently in the body. The antibody titer will slowly decrease over time. When the antibody titer drops below 10, the hepatitis B vaccine booster shot should be actively injected.

People with fever (basal body temperature > 37.5℃), persistent or severe diarrhea, hepatitis, blood disease, bronchial asthma, allergic urticaria or other acute or chronic serious diseases should not be vaccinated.

Bronchial asthma

Newborns born abnormally, such as those with low birth weight, premature birth, or caesarean section, should not be vaccinated for the time being. It is recommended to postpone the vaccination time.

People who receive measles vaccine should avoid receiving hepatitis B vaccine during the same time period.

People who are allergic to drugs such as penicillin, sulfonamide, formalin, or those with other types of allergies should not be vaccinated.