Colds have been vaccinated, there may be a high fever, skin allergies, loss of appetite, and even diarrhea. Through the vaccination, will first understand the child’s physical condition, because the vaccination during the cold will confuse the child’s signs of change, the child appeared to have a fever, cough, dizziness, headache symptoms, whether it is caused by the cold, or the vaccination caused. If it’s just a common cold, there won’t be much of a problem with the immunization. Parents need to keep an eye on their child’s signs and symptoms because each child’s physical condition is different, and the length of time it takes for a reaction to occur may be different. If there is a vaccine reaction, timely go to the hospital for treatment, parents need to cooperate with the doctor’s examination to reduce the harm to the child.