Thanks all, went to docs and have an anti bacterial/anti fungal cream to put on it twice a day... Pleased I took her. Doc gave it a really good clean and said if no improvement in a couple of days to take her back... Poor little mite!
Mine had this - just cleaned gently with water & cotton wool/flannel, dried thoroughly & used bepanthen. Cleared within 48hrs iirc. I felt terrible for not noticing either but dd didn't seem bothered by it!
My 3 week old has angry look red sores in her creases under her arms, feeling horrible for not noticing until they have got pretty bad but more to the point, is the best thing to use sudocream? Is this common? Am I a terrible mum?