Three-year-old children can drink soup after hepatitis B vaccination, but should pay attention to the type of soup, avoid some seafood soup, fish soup and so on. After a three-year-old child has received the hepatitis B vaccine, try to focus on light and easy to digest food, and at the same time, observe any adverse reactions after vaccination. 1. Children who drink soup after hepatitis B vaccination will not cause some adverse reactions or consequences, you can drink some millet porridge, corn porridge, egg soup, etc., but pay attention to avoid drinking some seafood soup, fish soup, etc., so as not to cause some adverse reactions. 2. After the child’s vaccination, it is necessary to stay in the vaccination unit for 30 minutes without any adverse reaction before leaving; within a few days after vaccination, it is necessary to measure the child’s temperature frequently, and the vaccination site should avoid getting wet, and if there is redness, swelling, pain or fever at the vaccination site, it is necessary to go to the hospital for consultation. Hepatitis B vaccine can stimulate the body to produce antibodies, with protective effect, the child if there is no contraindication to vaccination, in principle, need to be vaccinated.