You can get a flu shot while breastfeeding, and it will not have an effect on your baby’s health through breast milk. Influenza is a highly contagious respiratory infectious disease caused by influenza viruses. Influenza vaccination can prevent the occurrence of influenza and is one of the main measures to prevent and control influenza. Currently, the influenza vaccine is an inactivated influenza virus vaccine. Women can also get the influenza vaccine while breastfeeding, and the vaccine will not enter the breast milk and affect the baby’s health. If you are very concerned about affecting your baby after receiving the flu vaccine, you can avoid breastfeeding for 24 hours after the vaccination. Some people may experience adverse reactions such as redness, swelling, pain and hardness at the injection site, as well as fever, headache and dizziness after receiving the flu vaccine, which can be relieved after a period of time. Women can get the flu vaccine while breastfeeding, but it is strictly prohibited for those who are allergic to any of the ingredients in the vaccine.