The Blockage is gone and the chick is still acting sick. I think it is cocci.
The natural approach would be to try to get the chick to live thorough the cocci infestation. It is a parasite after all. Yogurt, scrambled eggs, vitamins and water. It might need to be tube fed. Culling for resistance and not using for breeding if it lives.
impacted crop will lead to sour crop after several days or so. It can lead to vent gleet too.
You can argue corid is just a vitamin blocker and barely a drug. People think its an antibiotic or drug but its not really.
I stopped going to natural threads when people refused to treat worms. Killing things painfully when you can fix it disgusts me. I get a bit out of control on those topics...
