I need advice on how to help hurt roo

My little rooster came scrambling over to me last night when I went to check on everyone before bed and he had a limp. I picked him up and he was obviously in pain, I set him up in our shop with straw and a bin with food and water but this morning when I checked on him his legs (mostly his bad one) were kinda splaid. Now he's got his feet kinda under but he seems in pain. Is there anything I can do to help him heal faster? Like a diy crutch or something to keep his foot from slipping from under him. He also seems to bob his head around strangely.

This morning he jumped out of the bin and started crying in pain. I'm not sure if that's a good thing since he was able to jump out or a bad thing since he seemed in pain