It is best to isolate the sick chicken to prevent aggression from others. Silky cliches tend to be flighty, so keeping it in a small space could help heal. Also, a limping chicken might have trouble getting to food and water in competition with others. Setting up a cage where the hurt chick can see others but is isolated and safe can help.
Try to identify the problem; if it is a dislocation, it is unlikely to get better. If the leg is in place, check the foot to ensure nothing is wrong and give it some time. Meghan, feel free to give me a call if you have questions, Louise Bergeron 781-223-1518 -- The LincolnTalk mailing list. To post, send mail to Lincoln@lincolntalk.org. Browse the archives at https://pairlist9.pair.net/mailman/private/lincoln/. Change your subscription settings at https://pairlist9.pair.net/mailman/listinfo/lincoln.