Afraid it will only get worse Izzy. It may be going back in on its own at the moment but there will come a time when to doesn't. She needs to go on a wheat only diet to stop her laying for several weeks. As it only contains about 10% protein it is insufficient to support the growth of eggs. It is an old-timers show technique we have used to good effect in the past. The sooner she starts this the better, because if it does come out and stay out your friend will have all the issues of insertion and re-insertion to deal with as well. It may not be successful at a later stage.