Sorry, I am being unreasonable posting this here but I'm not sure what to do.
Rash has been on my 3 year old since he got up at 4am, wasn't there when he went to bed. Thought it was a heat rash but I've just gone to get him dressed and it's not looking any better. He has small patches of it on his legs and neck also. He has no temp or other signs of illness and it fades under the glass test.
I have called 111 but waiting on a call back and they'll probably tell me to contact the GP by the time they get back to me.