My son fell on one of our 3 week old ducklings and broke its upper leg. I have splinted it and stabilized that part of the leg. After 2 days it still looks like it doesn't have any movement in its foot. Will this be something it never regains or will it just take time?
Ouch. Poor baby!
I do reccomend a vet, if you're able to get to one. What makes you believe the leg is broken? Is there swelling, heat, is the leg bent? Is he putting any weight on the leg at all?
Photos would be helpful to see
So first things first, if you can't get to a vet ASAP, I'd start water therapy. Don't have the water too warm, but since this is a baby I wouldn't have it cold either. A lukewarm bath would be best. Hopefully it will help a little with inflammation. Just allow him to float in there, for ten minutes or so, supervise him closely and dry him up after. I'd definitely supplement niacin through B complex, it may help with the healing.
Aspirin is suitable as a pain relief for ducks, but with him being so young and small I'm not sure what dose would be safe. I'd restrict his movement. Perhaps move the duckling with one of his friends, into a smaller cage so that he is forced to rest his leg. As trying to keep up with the others may cause him to make the injury worse.
If the ducklings are with mama, be sure that the duckling and his friend have a heat source.
@Miss Lydia what do you think?