im scared to touch it, iv just been washing it under the tap to keep it clean. but he's constantly chewing his fingers and i think he'll end but biting it off and either choking on it or swallowing it. should i cover it with a plaster or something to protect it? or just leave it open to the air? or should i try to pull the nail off or just leave it to come off itself? its all raw flesh underneath and its freaking me out!! although he doesnt seem bothered!

