I'm sorry, somehow I missed you a couple of days on the other thread. I see your little fella is still having trouble.
"I would love your advice. So my roosters swollen crop came back. I took him to the vet and they weren't sure. Thought maybe he was eating the sand in the run Bc it felt like sand. They tested his poop for bacteria and all was fine. She now wants to treat him with antibiotics and anti fungal ( nystatin) hoping one of them works but doesn't know the problem. I'd rather just try one. She said either this will work or there is something in his crop or he maybe was born with a descended crop in which case he won't live long. I'm so confused what to do .... I didn't feel like I made much progress by taking him in..."
Do you have photo of what it looks like at this time?
Did you ever offer him chick grit? That is crushed granite. He may be eating the sand as a substitute for grit and the sand may not be hard enough for whatever he is eating.
Is he pooping, what does it look like?
If you can, I would bring him in (I know your hubby has allergies) but maybe the garage, in a small kennel or even the container you brooded him in. I would only offer him water all the time and some SMALL pieces bread soaked in olive oil and offer grit and no other foods or treats to see if things move.You can gently massage the crop. Keep him on towels or something similar and no shavings. Take away any food at night and see if the crop has emptied by morning. It may take a couple of days. Then start introducing some scrambled/boiled egg, wet crumbles and/or tuna and see what happens.
The Nystatin the vet suggested is helpful if the crop is sour, but I see you mention that it doesn't smell sour. The breath would smell yeasty like fermented food.
What info I have suggested is a quick snapshot taken from here:
Edited by Wyorp Rock - 2/10/16 at 10:01pm