The second injection of chickenpox vaccine is required. Chickenpox vaccine belongs to two doses of vaccine, if the injection once will not produce a large number of antibodies, need to be in the prescribed time for the second shot of intensive vaccination, through the second injection the body will have an immune memory, so as to produce a large number of antibodies, and this antibody lasts for a long time, it can prevent chickenpox, so chickenpox the second shot is needed to be played. Chickenpox vaccine is prepared by passing through a virulent strain of the chickenpox virus and is a way to prevent chickenpox infection. The chickenpox vaccine is given to prevent chickenpox from appearing and also to prevent chickenpox shingles from causing side effects or complications. For chickenpox vaccination, it is recommended to choose a regular local hospital or vaccination station.