Sounds like a good plan! Her roosting with everyone is very good.Okay, that's exactly why I didn't want to vomit her and I'm glad you think it may work despite it. I did notice it slightly squishier this morning and the large mass that was there seems to have broken up (so possibly a good sign!). I will be sure to give her the full days of treatment. She's been getting scrambled egg each day (she doesn't seem to like the wet feed!) and she stays in a cage during the day under the barn where the other hens hang out since it's so hot. At night I let her out to go roost with everyone which she loves. Thank you so much for your help and I'll be sure to keep you updated and if I have any more questions.
Crop issues can take days/weeks to resolve, just keep working it. A lot of times those symptoms are related to another issue - for me, my hens that have crop symptoms also have reproductive problems.