Baby cough after vaccination usually can not take drugs, children injected vaccines are bacteria, viruses and other pathogenic microorganisms and their metabolites, after artificial attenuation, inactivation of the production of the pathogenic microorganisms into the human body, can stimulate the child’s immune system, the immune response, forcing the immune system to produce specific antibodies, there is a resistance to infectious diseases. If you give your baby cough medicine after vaccination, whether the cough medicine is an antibiotic or an antiviral drug, it is easy to kill the pathogenic microorganisms in the vaccine, thus affecting the child’s ability to produce specific antibodies to the injected vaccine, which may lead to vaccination failure. Parents are advised that if a baby coughs after vaccination, daily care can be strengthened to alleviate the coughing symptoms. If the cough worsens, symptomatic medication can be given as prescribed by the doctor.