I really have no idea. Isn't that really hard and pointy like would stick in things? Is he throwing up peices of the brillo or whatever it is? Like one of the copper type ones to really scrub stuff off is what's in my head and the bristles would worry me coming up or going through. I have no idea. If it was me I would probably go but you'll just have to use your best judgement. I can't see what's actually happening and am not even sure what he ate though it's not good any time. Will you let me know what happens and how he is please?