I have a chicken that came down with sour crop. I have done all the treatments that are suggested and yesterday she was acting more normal. When I woke up yesterday her crop was empty. I fed her some scrambled egg and she gobbled it right down. This morning her crop was empty and she isn't interested in food. Is it normal to have a minor set back? Her crop isn't near what it was but frustrating to have a step in the wrong direction.