The sugar pills you take as a child are polio vaccines, which are used to prevent poliovirus infections. Sugar pills eaten as a child are polio prevention sugar pills, also known as polio vaccine, these sugar pills are live attenuated vaccines that prevent poliovirus infection, commonly known as polio. These sugar pills are mixed with the live attenuated polio vaccine using powdered milk, glucose, and cream as excipients to make it easy for children to take. There are two main types of vaccines currently used to prevent polio, one is timely oral administration of live attenuated polio vaccine, also known as sugar pill, and the other is injection of inactivated polio vaccine. Sugar pill is a class I vaccine and inactivated vaccine is a class II vaccine, which can be chosen according to the child’s condition, and both of them can achieve effective prevention.