One of my chickens, a 13 week old pullet, got an inflamed eye a week ago. I've given her antibiotics but the swelling hasn't ever gone down and she's lost a lot of weight. Now the other eye is swelling up too. She cries quite often and scratches at it so I know she's in pain and I just can't seem to get this under control for her so my options are to either wait until she dies or put her out of her misery. I've never killed anything before in my life so I need a little guidance here. I know this is the best thing to do for her so I just need to deal with it, it's part of owning pets, but how do I do it humanely and without a lot of blood? I live in the country so I can shoot her if I need to I guess, is that what most people do? I'm at a total loss. Please help.