What should the chicken do if it eats nylon silk?

It should be no problem. You can excrete if you can eat. Chickens have a strong digestive ability. You need to eat some sand to help digestion. Don't worry. It's not a joke. You can really do it. Cut it open with scissors, take out the contents of the stomach and sew it up. It's really good to apply some mercuric chloride. I saw it with my own eyes in the countryside in my early years. Some people treat chickens in this way. It really works. But foam should not be necessary.