I'm sure I heard something recently that said Paw Paw had petrochemical components in it? It's not the best thing to use apparently. I have always used sudocrem (sp?) - the zinc in the grey container - and found it brilliant. Lots of nappy off time and sunshine is important if it's that bad, perhaps some anti-fungal cream when the nappy is on like previously suggested as it is a fungal thing. Then put the zinc on top.

Also calendula is very expensive but great for nappy rash. All the best - I know it's not nice, when Marisa was hospitalised for the rota virus which is a bad gastro bug that went on forever, it felt impossible to try and beat it as she had very watery poo and it seemed to wash off all the cream. Get well vibes for your little bubba xo