Chickenpox vaccine for babies is necessary, although chickenpox vaccine is a type 2 vaccine, which is not free in many places and needs to be given at your own expense. However, when you get the disease chickenpox, you need to be isolated, and this time can affect your work and life. After getting chickenpox, you will also have significant itching of the skin and will feel very uncomfortable. The rash of chicken pox may leave scars if there is a secondary bacterial infection, so the disease is not completely harmless. After getting chickenpox, some people even have obvious cases of chickenpox encephalitis and pneumonia, which can also be harmful. Although most people have relatively mild symptoms and are able to recover quickly. However, during this time, the same isolation is needed to prevent transmission to others. Therefore, the only way to prevent chickenpox is the chickenpox vaccine. If you feel that the chance of preventing chickenpox is not high after one shot of chickenpox vaccine, you can choose to get a booster shot, which can prevent most people from getting chickenpox.