I might be crazy but I think it may be a real problem for me. Guess I should have washed it but did not know you could just throw it in the washer and do that. I had never used it before. I could not find that it has anything other than polyester fibers and some sort of metallic stuff in the middle and I know I should not be allergic to any of that stuff. I have been coughing for hours and I am not sick. Do you know if anyone other than Warm and Natural manufactures it or something like it? I got it as Hancock's but never really checked on the labels.