The only option for farmers is careful scrutiny of flocks several times a day as ewes approach lambing, with prompt treatment of early cases. Treatment involves cleaning the prolapsed mass very carefully and gently replacing it, then holding it in place. The bearing is very easily damaged, and infections will occur unless great care is taken to clean and gently press it back into place without causing damage. Holding the prolapse up to allow the bladder to empty before trying to replace it is important. Facing the ewe downhill or elevating her hind end aids replacement.
Lubricant helps greatly.
Antibiotic injections are necessary to prevent serious womb infections. Once a ewe has prolapsed it's very likely that the bearing will be pushed out again unless it is somehow retained because the damage done to the vagina during prolapse causes irritation which in turn causes straining. The gentlest method of retaining prolapses involves tying wool over the vulva. The string should be sufficiently tight to prevent the prolapse from recurring. Commercially available bearing retainers can be used.