My 5 month old Barred Rock hen Oreo started limping on one foot a few days ago, it seemed to be getting better but then yesterday she sat down and didn't want to move around with the others. This happened with her twin sister 1 mo ago after our ( huge) Rooster mounted her and injured her leg but she's fine now. I placed Oreo on the roost last night and she make her way to the nest to lay this am but I put her in a cage today for rest and observation. I did a good physical assessment and don't find any sign of fracture or external injury. I read that vitamin B deficiencies can cause tendon problems so she has this is water in cage. Can I give her an anti-inflammatory? can't find what is safe to give or dosage? Any suggestions are appreciated.