Nellbe, my second son Brandon used to have this problem and it started just after birth. It would flare up in a nappy change and sometimes was gone again by the next change. His penis would sweel and he would get blistery looking swellings on either his penis or balls. Of course I freaked when I saw it but apparently it was just that his urine was too strong for his skin and was burning him.I would have to make sure he was kept as dry as possible - meant changing out of cloth to disposibles and smothering him in cream.

I hope that Matthew is fine and it's just a case of his urine getting stronger and more acidic, I know Tehya's has lately.