The baby’s crying after vaccination is related to shock and physical discomfort. After the vaccination, the baby was frightened, not able to relieve themselves, it is easy to cry at night, but most of them can be relieved in about 2~3 days. At the same time after vaccination, the vaccination site pain is also easy to cause crying, if there is obvious redness and swelling with hard knots, consider the vaccine local reaction can be temporarily observed, if the redness and swelling gradually increase, and cause the baby to cry seriously, to go to the hospital in a timely manner. Then the baby’s crying symptoms will also be relieved. At the same time should also closely observe the baby’s temperature, the baby in the vaccination if fever symptoms will cause crying, so we need to promptly reduce fever, and promptly give the appropriate symptomatic treatment, the baby crying symptoms can be completely relieved. If the symptoms are not relieved, it is necessary to consult a doctor in time.