yes i will keep that in mind. i didn't know that swelling can be infection and i will keep more of a close eye on my duck...well he has he own place and he has his own pool and i won't let him running around in the backyard with the other ducks. he is still limping. but it does take time for him to get better..the only thing i can say is i'm trying my best to help my duck to get better..and thank you everyone for helping me out!!!