My 2 year old had an upset stomach yesterday but was ok from 5pm onwards. So we put him to bed as normal, checked on him before I went to bed and was fine. Fast forward to 5am and he woke up with diarrhoea all his nappy so obviously I changed him quickly. However he’s now got this extremely painful rash all over his genitals. I’ve been cleaning it as much as I can, including bathing him and putting sudacrem on it. Can anyone recommend what else I can do? I hate seeing him in pain.