I adopted some chickens and added them to my tiny flock .. I didn’t realize all the ways chickens could get sick . Recently I lost my Handsome boy, my rooster. I noticed that all of my hens have sour crop .. I was able to help one with just water and oil .. massaging . But now I see it’s the entire flock . Some are still scared of me ! Is there a way I can treat the whole flock? I’m so stressed . ps I live in an area where finding a vet for chickens is nearly impossible. Please help.