jade&pearl sea sponge for prolapse

Body: 

I now have two sponges. the spong feels uncomfortable. I have trimmed it as when I stand up the pressure of my uterus just pushes everything down and it hurts. Do they not work with more severe prolapse? Does anyone have some tips? I really want this to work! I cannot even hold a tampon. When I stand or walk my body pushes it out!