Once you've got her staying intact, not just relapsing every time you leave her be, give her raspberry leaf tea or dried leaf in her food. Raw is fine too if you can get it, I'm just assuming you can't get it raw and can only buy it from healthfood shops or whatever.
Anyway, it tones the whole female reproductive system and also prevents the majority of cases of hemorrhage and septic issues in prolapsed or damaged females. It's one of those things everyone can't believe works until they try it. It's been proven in females of many species from humans to canines to poultry, and of course ruminants etc.
Best wishes.