Does anyone know anything about the polio vaccination? My son got his polio vaccination yesterday and now has a fever and a rash all over his body. When I called the pediatrician, she claimed that the reaction had nothing to do with the polio vaccination and that he was probably just having a flu. I know different - my son's sickness is a reaction to the polio vaccination! When can I expect this to go away? Do I need to take him to see a (another) doctor?