Drinking alcohol after hepatitis B vaccination is not recommended, as the body’s immunity will change after hepatitis B vaccination, and drinking alcohol at this stage will easily lead to allergy, and may also adversely affect the body’s production of corresponding antibodies. Hepatitis B vaccine is an inactivated hepatitis B surface antigen of the hepatitis B virus. After vaccination, the hepatitis B vaccine will stimulate the body to produce surface antibodies against hepatitis B, which can protect the body from infection by the hepatitis B virus. After vaccination against hepatitis B, the stimulation of hepatitis B surface antigen will lead to changes in the body’s immunity, and if you drink alcohol at this time, the gastrointestinal mucosa will be more sensitive to alcohol, and it will be easier to have diarrhea, dizziness and other allergic symptoms, and it is also possible that it may have an adverse effect on the body’s production of antibodies to reduce the effectiveness of the protection of the hepatitis B vaccine. It is not recommended to drink alcohol after hepatitis B vaccination, and drinking alcohol after vaccination is prone to diarrhea, dizziness and other allergic symptoms, and it is recommended to follow the doctor’s advice after vaccination.