If you happen to develop paralysis from polio, it is a very serious infection. If the muscles affected are involved with respiration, you could die without breathing assistance. In the past, that involved an iron lung, but now you would require a ventilator. If other muscles, such as an arm or leg, are involved, you might require a brace or a walker for the rest of your life. Unfortunately, there is no treatment for paralytic polio once it has occurred.