When mine have egg issues, I give them one each of my calcium and d pills. Then I break out the OB lube, squirt some in the vent and check for stuck eggs. If no egg is present, and they have prolapsed, I apply prep h and place them in a place away from other birds. If I find and egg, I will give them a bath or steam the bathroom and see if they can pass it. The calcium seems to help them pass the egg, but I'm not sure why.
Okay, was able to check these sites and she let me feel her. I think it is an egg she's having trouble with. I need husband to get me some Ky just in case. I'm going to keep at it with the tub for a while and see if she'll let me massage the area. She laid an egg a week ago that was longer than my hand! from what I could feel, this 'feels' normal sized. Back to the tub.