Vaccines should never be given during a cough. The cause of most coughs is the occurrence of respiratory infections, and vaccines can aggravate the cough. Because most vaccines are inactivated viruses, bacteria and toxoids, vaccines are antigens to the body and can easily lead to adverse reactions, which can also lead to colds and coughs at this time, so vaccines should never be given during a cough. If a respiratory infection occurs, the immunity of the body is not quite normal due to the influence of viruses and bacteria. At this time, if the vaccine is administered, the normal antibodies may not be produced properly and the vaccine will lose its effect, so it is better not to administer the vaccine during the cough. It is better to wait for two weeks or a week after the cough has fully recovered before the vaccination is safe and effective. If you have a cough, you should actively find the cause of the cough and provide targeted treatment for better results.