I've heard cories dont do well with ANY amounts of salt?? Im glad its gone back in, definately looked like a prolapse, having babies will do that to the best of us

She may have week insides and babies for her in the future, not a good option. Like was mentioned though she does have stored sperm still in which you cant do anything about, but I would suggest, keep her away from males for if she does pull through future pregnancies/deliveries, as you said this time was worse than the last....
GL to you!