To me the first foot looks good - but maybe the start of a bumble by that little scab. When they are small I use a toothbrush, dip it in some colorless iodine (which I buy from Amazon) and give it a scrub a couple times a day, keeping the duck out of the water for ten minutes or so afterwards while it dries. Keep this up until the scabs disappear. Sometimes ducks sprain their legs and you just need to rest them for a couple days by keeping them in a smaller area where they're not ranging very far - always keep them with a friend because they will crazy isolated.
The other foot looks more problematic and you should treat that. Here is what I did most recently for a bumble not too different than that. Soak a couple times if you can in warm epsom salt water to try to soften up the scab. My duck wasn't having much of that and I could only keep her in maybe 5 minutes. I then moved her to a towel I had already set up with two strips of 1 inch vet wrap - maybe about 15 inches long each - and a piece of gauze. I held her over my leg, under my arm, and pulled the foot back toward me. Try to gently pull the scab off and squeeze to get whatever is there to come out of the foot. Have a paper towel on hand to stop the blood, I sprayed the wound with vetricyn, then slathered with this epsom salt poultice:
(I got it off Amazon:
https://www.amazon.com/Durvet-Epsom-Salt-Poultice-Net/dp/B001OE3L8E/ref=sr_1_3_pp_mod_primary_new?crid=2CPJOCALVJYMU&keywords=epsom+salt+poultice+horse&qid=1690384789&sbo=RZvfv//HxDF+O5021pAnSA==&sprefix=epsom+salt+po,aps,230&sr=8-3)
Then put the gauze over and wrap the foot with vet wrap. I usually go around the ankle once, then kind of criss-cross over the foot, trying to keep the web spread out so that she can walk normally. Take the second piece and go over it again, covering the areas you missed. Toes will stick out. It's a bit of a trick and takes some patience, but once you get used to doing it it's not hard.
I have my ducks on very soft pine shavings, some pea gravel by their pond, grass in the yard, and old wood chips that they love digging through. I've rounded edges for their concrete steps also, but they still get bumble - just try to keep an eye on their feet, checking every week or two so you can catch scabs early and just do the toothbrush iodine method. Attached is a photo of the recent bumble I worked on - it became quite swollen but the scab actually almost disappeared. I ended up having to use a scalpel and make a tiny incision at a spot where I could see a bubble under the skin - clear liquid spurted out then lots of blood and I have been using the epsom salt poultice to draw the infection out and it's getting better. The other photos are a different duck who had a bumble on the heel pad, so I wrapped it a little differently, but you get the idea. Some supplies you should definitely keep on hand are: 1 inch vet wrap - you can get like 12 rolls for $6 on Amazon, a roll of soft gauze, colorless iodine and a toothbrush, triple antibiotic ointment, vetericyn wound spray, epsom salts, and the epsom salt poultice.
If you don't have all the supplies you need, in the meantime you can use a human drawing salve like Prid, or you could just do the epsom salt soaks a couple times a day - I would start with whatever you can right now.
iodine method.
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