OP - as a last resort try Hydrozole cream from the chemist. I have used it once or twice with DD1 when nappy rash just would not budge. It was gone in 24 hours!

We have been feeding at about 5am most mornings as Miss J thinks it's wake up time Grrr! I think she is getting cold and waking. She only has a norning feed now so I don't want to deny her but I wish she wouldn't wake so early for it!