Anti-inflammatory drugs can be taken 3 days after vaccination. Anti-inflammatory drugs usually have no effect on the effect of the vaccine, but it is recommended to apply them after consulting a doctor due to the large individual differences of patients. Some patients may have some adverse reactions due to vaccination 3 days after vaccination, including local redness, swelling, pain and other inflammatory reactions in the eye of the needle, which may be related to local stimulation by the vaccine and generally do not need to be treated with anti-inflammatory drugs. This is because if you take anti-inflammatory drugs 3 days after vaccination, the adverse reactions caused by the vaccine may cross over with those caused by anti-inflammatory drugs. Therefore, if the condition is mild, it is recommended to wait for 5-7 days after vaccination before taking anti-inflammatory drugs; if the adverse reaction or other diseases are serious and you have to take anti-inflammatory drugs, you should consult a professional doctor and apply them under the guidance of the doctor. If other diseases such as pneumonia, pharyngitis, rhinitis, etc. occur after vaccination, to be relieved by anti-inflammatory drugs, they can also be eaten. Neither antibiotics nor hormones or other types of anti-inflammatory drugs generally have any effect on the immune effect of the vaccine, so they can be applied under the guidance of a doctor, but not on your own. Vaccinations of any type and dose should be given with attention to the relevant precautions. Vaccines are different from ordinary medications, and it is recommended to listen to the doctor’s advice about the medication for 3 days after vaccination to avoid unexpected situations.