Help before its to late please

[Lenny loves chickens]

I would recommend creating a small area that you can separate out your duck so she can also rest. You can also put a friend in there with her to keep her company. It will be easier to keep dry and clean for her.

This is what I like to use for a waterer. It helps limit the waterery mess and still allows them to dunk their head.
View attachment 2899166

In your picture, I notice concrete. Do they live on the concrete at any time or is that just your area for care? I mention that because concrete is very hard on duck feet and can cause bumblefoot. Any hard surfaces, rocks, thorns and such can also lead to bumblefoot.

You can treat bumblefoot with Enrofloxacin, generic form of baytril. This will kill the infection inside. It is 0.05ml per lb twice a day for 5-7 days. You can get this one without a prescription.
https://allbirdproducts.com/products/enrofloxacin-10

I would also recommend duck booties for her. I have wrapped my Pekins feet when treating for bumblefoot. The wrap started to irritate her upper foot area, so I finally decided to try getting duck booties. I actually found it heals quicker with the booties. If you choose to get some, Krazy k farms sells them and ships quickly.

Yes I have separate spaces for night time thays just hay and no water they are all sorted by breed. And they are on concrete for for winter in a building because I dont know what I would lay on top of that. So if you have ideas there I would take suggestions. Thank you all for suggestions ducks aren't my thing. I am very knowledgeable in chickens haha.

 

[shawluvsbirds]

Yes I have separate spaces for night time thays just hay and no water they are all sorted by breed. And they are on concrete for for winter in a building because I dont know what I would lay on top of that. So if you have ideas there I would take suggestions. Thank you all for suggestions ducks aren't my thing. I am very knowledgeable in chickens haha.

Straw on top of the concrete. Yeah..
Bare concrete is a problem. Not good for feet.
My call Duck house floor is concreted we used a piece of scrap vinal to cover it and then I use a mixture of straw and pine shavings on top of that for bedding. You have to get in there and spot clean the really poopy parts and stir It up on a regular basis.

 

[shawluvsbirds]

People do use hay, but I would opt for straw instead. Hay will be more prone to getting mold and mildew plus could add to the moisture issue.
The reason I like to use a mixture of the shavings and the straw is because the shavings will help absorb some moisture and odors while the straw helps keep it fluffier. Some people have found bumblefoot issues with pine shavings. That all kind of depends on the kind of pine shavings you have access to I think. I have purchased some before that had pretty sharp edges.
The problems arise when they get little scratches and scrapes on their feet and then bacteria enters from them walking around in poo.
And let's face it..ducks are poo machines. They're going to be walking in a certain amount of nastiness no matter how clean you try to keep it.
So the first thing you need to think about is ways to keep them from scratching up their feet. Again you cannot control every aspect of that. If they free range at all they're going to come in contact with sticks thorns rocks etc.