Dd, 16 months, has an angry dark red rash on her labia which appeared alongside the diarrhoea she has developed in the past few days. I can't remember older ds ever having had such a nasty rash. What do you think it is? Do we need to see gp? What can I use to relieve it as ordinary nappy cream is not doing the trick? I'm in the US at the moment, so any familiarity with US products would be helpful. Thanks, Expat.