The GP told me I had a prolapse a few years ago when I went to her as I could see something, and feel it. She gave me a tube of Ovestin. No other advice whatsoever
So I bought a Kegel 8 machine, you just insert a probe, switch it on, and it exercises the muscles whilst you watch tv, read a book or any other sitting down activity. If you don't want to insert the probe, as too uncomfortable, then there are programs you can do with electrode pads on your back. It takes about 12 weeks to improve, they have a program for prolapses (they have 14 programs). Once all the muscles are stronger, they can support everything.
It sort of moved mine upwards enough (an inch or so) so that it doesn't bother me anymore, although recently when I tried cutting my oestrogen, it all dropped a bit, and I've had to start using it again.
Maybe that and the Vagifem could help? And definitely a good quality moisturiser.
Another, er, weapon in my armory is a thing called an Aquaflex. (I gave birth to a 10lb baby 25 years ago! If I'd known then what I know know, I'd have had a caesarean. )Anyway, the Aquaflex is a little bullet-shaped object that you fill with weights, you can start as low as you need and work up. Keep it in for a few minutes in the morning, e.g. whilst brushing teeth or in the shower. It's another thing that strengthens the muscles and pulls everything back a bit.
Good luck, it's enough to upset anyone. There are solutions to this besides surgery.