The chicken has some thin nylon string stuck in her throat. Her crop feels a little hard, and she is silent. I tried pulling the sting, but it didn't move and there was a little blood on it. I opened her mouth and see a few woodchips in there along w/ the string..shoudl I just cut it off? pull it out? WHAT? Help please! Also- when I was holding her, I noticed TONS of bugs jumped/crawled...were on- my shirt. I saw a few of these tiny bugs on the other chicken a few days ago, but there were probably 30-50 on my shirt... Can I get DE- food grade at lowes? the other DE I bough said not to inhale or get on skin... help!!!