DS is 7mths old, as soon as we change or bathe him he claws at his bits like hell. I ignored it at first, thinking he'd just 'found' it and the novelty would wear off. He's been doing it for a few months now though, and he grabs at it as though he's in discomfort, until he makes the whole area bright red and even breaks the skin at times. It's very difficult to change him because of it- it normally takes two of us, with one of us to pin his arms away from his genitals.
Any ideas? Could there be something irritating him that we can't see?