My 8 week old pullet (barred rock) suddenly can't walk. It seems to me like her 'hock' (I don't know chicken terminology - the top of her leg at the joint where the feathers start) is hot and swollen on one side. She is very interested in food and water, but I have to give her her own tray because she can't reach the regular feeder/waterer. I ended up isolating her, within the coop, because every time I gave her her own food the others would trample her and steal it. So she has been getting starter feed, water with electrolytes and yogurt. Is there anything else I can be doing? I feel like I should be icing it or giving epsom soaks, but I don't know how that would go over with a chicken...I'm new to chickens. Thank you for any advice. edited to add - not only can't she walk - she can't stand at all. Her wings flap fine (when I pick her up), And she has been vaccinated for Marek's.