Sick with swollen left side chest

[Bizichick]

I posted a little bit ago about a sick chicken. She is laying with eyes and mouth closed. Still breathing, but not moving. The left side of her chest looks swollen but is hard, not soft. Any advice on what could be going on and what to do?

 

[Double Laced]

Have you got a picture, sounds like a crop problem: brief overviews below. the fact you say it is hard sounds like impaction

impaction : crop is stuffed full of food/grass/hay/straw/corn/wood shavings etc. Might clear in time with grit and castor oil. There are other and more drastic methods.

infection : crop has become infected and inflamed. Tylan is good

fungus : fungus is growing in crop after eating mouldy foodstuffs or damp pellets.

Poison : bird has eaten a poison like rat poison/rhubarb leaves/raw lentils.

Hope this helps and she recovers