My 20 month old has very very bad nappy rash on his bum. Tonight he done a poo and wouldn't let me wipe it. He screamed and cried so much he threw up and now he's knackered himself out and gone to sleep. It's so bad he doesn't even want to sit in his high chair. I've been putting sudocreme on and last time I went to the GP about it they gave me hydrocortisone cream. I hate seeing him so upset. I have bad eczema so I know how it feels when your skin stings. He starts shaking where he's in so much pain 😔 does anyone have any advice on how to soothe him?