I'm glad I came across this thread as I was about to post about sore bums.
Archie is teething (I think) and has had very sore red bits (not bum) and has now got a couple of blisters, despite being nappy free for 90% of today and yesterday.
We switched to Bold after reading recommendations on here from Fairy Non Bio and it all fits now that it's been happening since then really. I was about to give up on pockets because it seems a hundred times worse in them, but was confused about what I should do when he's not in wool (I love wool, but do want him to wear 'normal' clothes sometimes you see!)
He only seems to be ok when in fitteds and wool though.
I think I will now strip all his nappies tomorrow and fo back to the Fairy, just using Bold for clothes.