I had this happen to two of my girls after a neighbor fed then snails and long grass.
I tried everything . Had to put the first girl down and the second passed on her own.
With isolation and hand feeding I stretched their lives by a couple of months. Even took them to vets.
hi
I have a chicken with the same problem..Can't walk ,eats very little and I give her water with a dropper. i will get some gaterade
for electrolytes and some molasses and Vaseline and try the warm water and stuff. its been a hard week. ill let you know how it goes.
thx
Frank