Hi everyone! I’m a new member but have been reading through posts and articles from here that have been very helpful. I’m in canker crisis! Metronidazole I can only get at a vet (I’m in Canada) and I can’t bring her to a vet (my husband won’t go for that and to be honest we don’t have the money right now). I got some copper sulfate from the feed store for $3 for a pound. We don’t have any pigeons or doves really around our property that I’ve seen or even heard. So unless she was exposed to this before I got her and got stressed or something and now it’s breaking out. I have ACV in all the other waters cause I wasn’t sure about the copper sulfate for all of them. I’m giving it to the hen who’s in a separate area in a bowl and gave her some in a syringe this morning to make sure she’s drinking it with a bit of thyme extract cause I’ve read (only in one article) that it’s effective. It looked worse yesterday but today it’s on the top of her mouth too in a small spot. Yesterday it had more of a greyish colour and when I wiped it it bled a so I stopped. Her jaw part is swollen too. That’s what I noticed first yesterday and she had thick saliva that was hanging out. She ate her bowl of food yesterday and today she’s mad and kicked the bowl around and food went everywhere. She’s too chicken in the group and use to being fully free ranged. Could it be anything else other than a canker? She’s not lethargic, pooping, eating and drinking by the looks of it. No spots on her comb. Will the copper sulfate effect eggs at all? I’ve read about giving it 3 days once a month to prevent it.