we had this happen to our Little Red Hen 5 years ago - and the home treatments with sugar did not work, she ended up having surgery, the vet wasn't even sure what he removed and we were told she wouldn't likely lay eggs, but she did form eggs and twice had to have them removed by a vet (she has been an expensive hen!). It sounds like you have been successful, I tell you this only because our Little Red Hen is VERY little, even for a banty and I suspect that her body is just not designed for egg laying, the eggs that were removed from her the vet said would never have come out on their own as they were two large. She is not feeling well right now and may be forming an egg - it is wait and see, this happens every spring, fortunately she doesn't lay eggs very often, probably only 6 in her life! She would be considered a 'runt' by farm standards and would not have survived thus far - but we are glad she has, she has a lot of personality!
Good luck, I hope this was a one time incident with your little hen.
Good luck, I hope this was a one time incident with your little hen.