We were on holiday last week in Tunisia and the Pampers nappies out there are made of slightly weird plasticky stuff. My DD seemed to develop round red marks around the back of her waist which I am not sure whether to attribute to these nappies but which don't seem to be going away now that we're back and using normal nappies. The marks look rather raw and sore. She's got the odd big red mark in the middle of her back as well too and a few smaller ones emerging on her tummy. Anyone else ever had experience of this? Thanks!