Just thought I'd share this in case it helps someone... We have been using Tesco nappies on DD since she was born (2 months ago). But last week I started using Pampers cuz I bought some on sale. Nearly straight away she developed a nappy rash, which she has never had before! I started using the Tesco ones again and the rash disappeared almost immediately. Could it be a coincidence? Maybe, but I won't try Pampers again as they are much more expensive anyway!