Vaccination is the injection of inactivated viruses into the body to stimulate the body to produce antibodies against certain types of pathogenic microorganisms, and certain principles must be observed when administering the injection. Vaccination of infants and children with weak resistance and immunity can prevent certain types of diseases to a greater extent. It is better not to give vaccinations to children with coughing problems, so as to avoid the effect of vaccines being affected by coughing medication. At the same time, when a child is sick and coughing, he or she is in poor physical condition, and the vaccination may cause more uncomfortable physical reactions, fever and other phenomena, which may aggravate the condition. The vaccination should be given after the child’s cough and illness has been cured and the medication has been stopped for a week. After the vaccination, parents should pay close attention to the changes in the child’s body to see if there are any abnormalities such as redness, swelling and bleeding in the injection eye, and if the child has fever and other uncomfortable symptoms, and if so, consult the doctor and solve them in time. When a child is sick and coughing, he or she may be more uncomfortable after the injection, and medicines such as cold medicine may also affect the effect of the vaccine, so the child should be cured before the injection.