If the baby has diarrhea after vaccination, if the symptoms occur within a short period of time, the baby can recover on its own and no special treatment is needed. If the child has diarrhea for a long time, it should be taken seriously and can be treated with medication. In general, due to the adverse reaction of the vaccine, some children can appear diarrhea, usually diarrhea symptoms will not be more than three days, if three days to recover the symptoms of diarrhea, no need to take special treatment. If the symptoms of diarrhea return within three days, no special treatment is needed. In the daily life, pay attention to the baby’s warmth measures, avoiding the abdomen can be cooled. However, it should be noted that if the symptoms of diarrhea for more than three days, and accompanied by irritability, loss of appetite and other symptoms, need to pay attention. It may be due to indigestion, gastroenteritis and other diseases, need to be under the guidance of the doctor, parents should give the child oral intestinal probiotics under the guidance of the doctor, such as Bacillus licheniformis, Bifidobacterium bifidum and so on. If the baby has diarrhea for a long time, parents need to pay attention, should bring the child to the regular hospital, identify the cause of the disease, and actively cooperate with the doctor to take relevant therapeutic measures.