I need your help again. My Lady dog has a large tumor that presses against her anus. She has not been able to pass as her poop is to firm. So she is backed up for a few days and the poor girl has tried hard to get it to pass. I just gave her two spoons of olive oil I hope will help. What can I give her to make her stool soft or even turn it to diarrhea. It needs to pass a restricted anus. I know many things that help soften when poop is being made but I need something that will convert it when it has been made already. She gets pumpkin during her feedings but I think I gave her something that firmed her up.