Urgent, hen with possible Canker?

[Somewhere_In_The_Clouds]

I have an almost 2 year old sussex hen with a massive lesion in her throat. I have zero experience with canker or any knowledge about this.
She cannot really eat and is quite underweight.
Getting a vet involved is a possiblity, but I cannot guarantee it. If it is possible (vet has appointment space and I decide to go ahead with it) I'd likely take her in in the morning. I'm willing to look into getting her seen it but only really if this is something that will/could affect my whole flock.
I'd appreciate any advice or information.

 

[DobieLover]

You should be able to purchase Ronidazole online at a bird supply house. If not, ask your vet for a prescription. Following the mixing directions and give her only the medicated water for 7 to 10 days. Keep the solution in your refrigerator and give her fresh medicated water daily.

You may need to give her fluids manually to keep her hydrated and get her drinking and eating on her own. Only use the medicated water when you give her fluids.

I would also make a mash out of her food with the medicated water.

 

[Eggcessive]

Does the hen have a bad odor from her beak as well? It does look like canker or trich which can be transmitted by pigeons or other birds using feeder and waterers. Metronidazole, ronidazole, or acidified copper sulfate are some of the treatments. Some of the yellow plaques may have to be removed if they get big and block the throat/airway. Canker can spread into the the chickens’s throat, esophagus, and crop wall. Disinfect your feeders and waterers, and separate the hen. Canker can eventually affect the others in the flock if not controlled. Some would cull chickens with severe canker to control the spread and prevent suffering. Let us know how she gets along.

 

[Somewhere_In_The_Clouds]

Does the hen have a bad odor from her beak as well?

Unfortunately I can't really tell. I often have a poor sense of smell, I think there may be an odor but to me it's not strong.

Disinfect your feeders and waterers, and separate the hen.

She is seperated and I'll get on to cleaning everything ASAP.

Canker can eventually affect the others in the flock if not controlled. Some would cull chickens with severe canker to control the spread and prevent suffering.

Thank you. I'm going to have to seriously think about it....

Let us know how she gets along.

Will do.